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31233230102 = 2101174188811
BaseRepresentation
bin11101000101101001…
…010100010100010110
32222121200211111001002
4131011221110110112
51002431201330402
622203124303302
72153663034614
oct350551242426
988550744032
1031233230102
1112278387068
126077b41b32
132c39a22859
1417241486b4
15c2c02a602
hex745a54516

31233230102 has 16 divisors (see below), whose sum is σ = 47341414224. Its totient is φ = 15452940000.

The previous prime is 31233230099. The next prime is 31233230113. The reversal of 31233230102 is 20103233213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307277 + ... + 396087.

It is an arithmetic number, because the mean of its divisors is an integer number (2958838389).

Almost surely, 231233230102 is an apocalyptic number.

31233230102 is a deficient number, since it is larger than the sum of its proper divisors (16108184122).

31233230102 is a wasteful number, since it uses less digits than its factorization.

31233230102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90655.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31233230102 its reverse (20103233213), we get a palindrome (51336463315).

The spelling of 31233230102 in words is "thirty-one billion, two hundred thirty-three million, two hundred thirty thousand, one hundred two".

Divisors: 1 2 101 202 1741 3482 88811 175841 177622 351682 8969911 17939822 154619951 309239902 15616615051 31233230102