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31295038319 = 1716651110557
BaseRepresentation
bin11101001001010101…
…000110001101101111
32222210000010122222022
4131021111012031233
51003043012211234
622213213140355
72155343302526
oct351125061557
988700118868
1031295038319
11122aa262536
12609478a6bb
132c4978386c
14172c4374bd
15c32688e2e
hex74954636f

31295038319 has 8 divisors (see below), whose sum is σ = 33138212688. Its totient is φ = 29452118400.

The previous prime is 31295038213. The next prime is 31295038373. The reversal of 31295038319 is 91383059213.

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 31295038319 - 228 = 31026602863 is a prime.

It is a super-2 number, since 2×312950383192 (a number of 22 digits) contains 22 as substring.

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 31295038319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31295038919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227789 + ... + 338345.

It is an arithmetic number, because the mean of its divisors is an integer number (4142276586).

Almost surely, 231295038319 is an apocalyptic number.

31295038319 is a deficient number, since it is larger than the sum of its proper divisors (1843174369).

31295038319 is a wasteful number, since it uses less digits than its factorization.

31295038319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127225.

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 31295038319 in words is "thirty-one billion, two hundred ninety-five million, thirty-eight thousand, three hundred nineteen".

Divisors: 1 17 16651 110557 283067 1879469 1840884607 31295038319