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31342023102 = 2313230909293
BaseRepresentation
bin11101001100001000…
…010101000110111110
32222220021112201222110
4131030020111012332
51003142024214402
622222012154450
72156453541435
oct351410250676
988807481873
1031342023102
1112323833935
1260a8468a26
132c56424700
14173478811c
15c3686a56c
hex74c2151be

31342023102 has 24 divisors (see below), whose sum is σ = 67876809624. Its totient is φ = 9643699104.

The previous prime is 31342023101. The next prime is 31342023103. The reversal of 31342023102 is 20132024313.

It is an interprime number because it is at equal distance from previous prime (31342023101) and next prime (31342023103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31342023101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15453633 + ... + 15455660.

It is an arithmetic number, because the mean of its divisors is an integer number (2828200401).

Almost surely, 231342023102 is an apocalyptic number.

31342023102 is an abundant number, since it is smaller than the sum of its proper divisors (36534786522).

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

31342023102 is a wasteful number, since it uses less digits than its factorization.

31342023102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30909324 (or 30909311 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31342023102 its reverse (20132024313), we get a palindrome (51474047415).

The spelling of 31342023102 in words is "thirty-one billion, three hundred forty-two million, twenty-three thousand, one hundred two".

Divisors: 1 2 3 6 13 26 39 78 169 338 507 1014 30909293 61818586 92727879 185455758 401820809 803641618 1205462427 2410924854 5223670517 10447341034 15671011551 31342023102