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211013131000 = 23537241112503
BaseRepresentation
bin1100010010000101011…
…1001101101011111000
3202011122212102201002011
43010201113031223320
511424123330143000
6240534343415304
721150050006440
oct3044127155370
9664585381064
10211013131000
1181543458561
1234a8ba54534
1316b8ab93539
14a2daa0d120
1557502592ba
hex31215cdaf8

211013131000 has 128 divisors (see below), whose sum is σ = 564588610560. Its totient is φ = 72311568000.

The previous prime is 211013130967. The next prime is 211013131001. The reversal of 211013131000 is 131310112.

211013131000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2110131310002 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211013131001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16870749 + ... + 16883251.

It is an arithmetic number, because the mean of its divisors is an integer number (4410848520).

Almost surely, 2211013131000 is an apocalyptic number.

211013131000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211013131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282294305280).

211013131000 is an abundant number, since it is smaller than the sum of its proper divisors (353575479560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211013131000 is a wasteful number, since it uses less digits than its factorization.

211013131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14942 (or 14928 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 211013131000 its reverse (131310112), we get a palindrome (211144441112).

The spelling of 211013131000 in words is "two hundred eleven billion, thirteen million, one hundred thirty-one thousand".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 125 140 175 200 250 280 350 500 700 875 1000 1400 1750 2411 3500 4822 7000 9644 12055 12503 16877 19288 24110 25006 33754 48220 50012 60275 62515 67508 84385 87521 96440 100024 120550 125030 135016 168770 175042 241100 250060 301375 312575 337540 350084 421925 437605 482200 500120 602750 625150 675080 700168 843850 875210 1205500 1250300 1562875 1687700 1750420 2109625 2188025 2411000 2500600 3125750 3375400 3500840 4219250 4376050 6251500 8438500 8752100 10940125 12503000 16877000 17504200 21880250 30144733 43760500 60289466 87521000 120578932 150723665 211013131 241157864 301447330 422026262 602894660 753618325 844052524 1055065655 1205789320 1507236650 1688105048 2110131310 3014473300 3768091625 4220262620 5275328275 6028946600 7536183250 8440525240 10550656550 15072366500 21101313100 26376641375 30144733000 42202626200 52753282750 105506565500 211013131000