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2011211300 = 225274576287
BaseRepresentation
bin111011111100000…
…1010011000100100
312012011110010020102
41313320022120210
513104332230200
6531323123232
7100561004540
oct16770123044
95164403212
102011211300
119423048aa
12481673518
132608a1377
14151176a20
15bb8796d5
hex77e0a624

2011211300 has 72 divisors (see below), whose sum is σ = 4999513344. Its totient is φ = 687939840.

The previous prime is 2011211281. The next prime is 2011211311. The reversal of 2011211300 is 31121102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316757 + ... + 323043.

Almost surely, 22011211300 is an apocalyptic number.

2011211300 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 2011211300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2499756672).

2011211300 is an abundant number, since it is smaller than the sum of its proper divisors (2988302044).

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

2011211300 is a wasteful number, since it uses less digits than its factorization.

2011211300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765 (or 6758 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2011211300 is about 44846.5305235533. The cubic root of 2011211300 is about 1262.2708900332.

Adding to 2011211300 its reverse (31121102), we get a palindrome (2042332402).

The spelling of 2011211300 in words is "two billion, eleven million, two hundred eleven thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 457 700 914 1828 2285 3199 4570 6287 6398 9140 11425 12574 12796 15995 22850 25148 31435 31990 44009 45700 62870 63980 79975 88018 125740 157175 159950 176036 220045 314350 319900 440090 628700 880180 1100225 2200450 2873159 4400900 5746318 11492636 14365795 20112113 28731590 40224226 57463180 71828975 80448452 100560565 143657950 201121130 287315900 402242260 502802825 1005605650 2011211300