Search a number
-
+
20210311023200 = 255241616168019
BaseRepresentation
bin1001001100001100101000…
…11010001100101001100000
32122120002100022202102220022
410212012110122030221200
510122111204110220300
6110552253321133012
74154101230151004
oct446062432145140
978502308672808
1020210311023200
116492165766611
122324a8832a168
13b37a9387a66c
144dc281904704
15250ab3653285
hex12619468ca60

20210311023200 has 72 divisors (see below), whose sum is σ = 50541798008520. Its totient is φ = 7886950630400.

The previous prime is 20210311023151. The next prime is 20210311023223. The reversal of 20210311023200 is 232011301202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308051210 + ... + 308116809.

It is an arithmetic number, because the mean of its divisors is an integer number (701969416785).

Almost surely, 220210311023200 is an apocalyptic number.

20210311023200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210311023200 is an abundant number, since it is smaller than the sum of its proper divisors (30331486985320).

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

20210311023200 is a wasteful number, since it uses less digits than its factorization.

20210311023200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616168080 (or 616168067 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20210311023200 its reverse (232011301202), we get a palindrome (20442322324402).

The spelling of 20210311023200 in words is "twenty trillion, two hundred ten billion, three hundred eleven million, twenty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 41 50 80 82 100 160 164 200 205 328 400 410 656 800 820 1025 1312 1640 2050 3280 4100 6560 8200 16400 32800 616168019 1232336038 2464672076 3080840095 4929344152 6161680190 9858688304 12323360380 15404200475 19717376608 24646720760 25262888779 30808400950 49293441520 50525777558 61616801900 98586883040 101051555116 123233603800 126314443895 202103110232 246467207600 252628887790 404206220464 492934415200 505257775580 631572219475 808412440928 1010515551160 1263144438950 2021031102320 2526288877900 4042062204640 5052577755800 10105155511600 20210311023200