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31032145144097 = 161871917102931
BaseRepresentation
bin1110000111001001110111…
…11111001110100100100001
311001212122101112212200211122
413003210323333032210201
513031412313124102342
6145555545355422025
76351666325352426
oct703447377164441
9131778345780748
1031032145144097
119984727a22539
1235922a2754915
13144141b335ac6
14793d6cab9d4d
1538c33d64c4d2
hex1c393bfce921

31032145144097 has 4 divisors (see below), whose sum is σ = 31034062263216. Its totient is φ = 31030228024980.

The previous prime is 31032145144069. The next prime is 31032145144109. The reversal of 31032145144097 is 79044154123013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31032145144097 - 234 = 31014965274913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31032145140097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958535279 + ... + 958567652.

It is an arithmetic number, because the mean of its divisors is an integer number (7758515565804).

Almost surely, 231032145144097 is an apocalyptic number.

It is an amenable number.

31032145144097 is a deficient number, since it is larger than the sum of its proper divisors (1917119119).

31032145144097 is a wasteful number, since it uses less digits than its factorization.

31032145144097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917119118.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 31032145144097 in words is "thirty-one trillion, thirty-two billion, one hundred forty-five million, one hundred forty-four thousand, ninety-seven".

Divisors: 1 16187 1917102931 31032145144097