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31043000230 = 2511793572267
BaseRepresentation
bin11100111010010011…
…101001011110100110
32222010102212210201021
4130322103221132212
51002034002001410
622132211121354
72146163101564
oct347223513646
988112783637
1031043000230
111218aa675a0
1260242a325a
132c094a95b8
141706b8aa34
15c1a4a0eda
hex73a4e97a6

31043000230 has 32 divisors (see below), whose sum is σ = 61728791040. Its totient is φ = 11145469920.

The previous prime is 31043000221. The next prime is 31043000251. The reversal of 31043000230 is 3200034013.

It is a congruent number.

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, 1777444 + ... + 1794823.

It is an arithmetic number, because the mean of its divisors is an integer number (1929024720).

Almost surely, 231043000230 is an apocalyptic number.

31043000230 is a deficient number, since it is larger than the sum of its proper divisors (30685790810).

31043000230 is a wasteful number, since it uses less digits than its factorization.

31043000230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3572364.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 31043000230 its reverse (3200034013), we get a palindrome (34243034243).

The spelling of 31043000230 in words is "thirty-one billion, forty-three million, two hundred thirty", and thus it is an aban number.

Divisors: 1 2 5 10 11 22 55 79 110 158 395 790 869 1738 4345 8690 3572267 7144534 17861335 35722670 39294937 78589874 196474685 282209093 392949370 564418186 1411045465 2822090930 3104300023 6208600046 15521500115 31043000230