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31200233010 = 2352345217729
BaseRepresentation
bin11101000011101011…
…011100011000110010
32222112101202001112120
4131003223130120302
51002344224424020
622155545135110
72153112414312
oct350353343062
988471661476
1031200233010
1112260799941
126068a8a496
132c32c3b64b
14171d9d9442
15c291ad740
hex743adc632

31200233010 has 32 divisors (see below), whose sum is σ = 78136237440. Its totient is φ = 7958320128.

The previous prime is 31200232979. The next prime is 31200233027. The reversal of 31200233010 is 1033200213.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22608175 + ... + 22609554.

It is an arithmetic number, because the mean of its divisors is an integer number (2441757420).

Almost surely, 231200233010 is an apocalyptic number.

31200233010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31200233010 is an abundant number, since it is smaller than the sum of its proper divisors (46936004430).

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

31200233010 is a wasteful number, since it uses less digits than its factorization.

31200233010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45217762.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31200233010 its reverse (1033200213), we get a palindrome (32233433223).

The spelling of 31200233010 in words is "thirty-one billion, two hundred million, two hundred thirty-three thousand, ten".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 45217729 90435458 135653187 226088645 271306374 452177290 678265935 1040007767 1356531870 2080015534 3120023301 5200038835 6240046602 10400077670 15600116505 31200233010