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31242385799 = 614491140691
BaseRepresentation
bin11101000110001100…
…001111100110000111
32222122100001122021222
4131012030033212013
51002441022321144
622204052430555
72154133616612
oct350614174607
988570048258
1031242385799
111228256a959
12607b01845b
132c3b8aa021
14172544d179
15c2cc382ee
hex74630f987

31242385799 has 8 divisors (see below), whose sum is σ = 31825306800. Its totient is φ = 30661747200.

The previous prime is 31242385789. The next prime is 31242385903. The reversal of 31242385799 is 99758324213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31242385799 - 28 = 31242385543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31242385799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31242385739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542957 + ... + 597734.

It is an arithmetic number, because the mean of its divisors is an integer number (3978163350).

Almost surely, 231242385799 is an apocalyptic number.

31242385799 is a deficient number, since it is larger than the sum of its proper divisors (582921001).

31242385799 is a wasteful number, since it uses less digits than its factorization.

31242385799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141201.

The product of its digits is 3265920, while the sum is 53.

The spelling of 31242385799 in words is "thirty-one billion, two hundred forty-two million, three hundred eighty-five thousand, seven hundred ninety-nine".

Divisors: 1 61 449 27389 1140691 69582151 512170259 31242385799