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31102312303230 = 2357148106249063
BaseRepresentation
bin1110001001001100100100…
…10001101100101001111110
311002010100111121202200221020
413010212102101230221332
513034040013422200410
6150052112141245010
76360032202356460
oct704462221545176
9132110447680836
1031102312303230
119a01464506753
1235a3a05563766
131447c212a968c
147975079a6130
1538e09877ba70
hex1c499246ca7e

31102312303230 has 32 divisors (see below), whose sum is σ = 85309199460864. Its totient is φ = 7109099954976.

The previous prime is 31102312303211. The next prime is 31102312303253. The reversal of 31102312303230 is 3230321320113.

It is a self number, because there is not a number n which added to its sum of digits gives 31102312303230.

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, 74053124322 + ... + 74053124741.

It is an arithmetic number, because the mean of its divisors is an integer number (2665912483152).

Almost surely, 231102312303230 is an apocalyptic number.

31102312303230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31102312303230 is an abundant number, since it is smaller than the sum of its proper divisors (54206887157634).

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

31102312303230 is a wasteful number, since it uses less digits than its factorization.

31102312303230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148106249080.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31102312303230 its reverse (3230321320113), we get a palindrome (34332633623343).

The spelling of 31102312303230 in words is "thirty-one trillion, one hundred two billion, three hundred twelve million, three hundred three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 148106249063 296212498126 444318747189 740531245315 888637494378 1036743743441 1481062490630 2073487486882 2221593735945 3110231230323 4443187471890 5183718717205 6220462460646 10367437434410 15551156151615 31102312303230