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31934843913 = 371520706853
BaseRepresentation
bin11101101111011101…
…110000110000001001
310001102121001011020210
4131233131300300021
51010400310001123
622400510311333
72210242460130
oct355735606011
9101377034223
1031934843913
11125a8428995
126232ab8549
13301c1a865b
14178d3c2917
15c6d91ae93
hex76f770c09

31934843913 has 8 divisors (see below), whose sum is σ = 48662619328. Its totient is φ = 18248482224.

The previous prime is 31934843911. The next prime is 31934843917.

31934843913 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 31934843913 - 21 = 31934843911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31934843911) 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, 760353406 + ... + 760353447.

It is an arithmetic number, because the mean of its divisors is an integer number (6082827416).

Almost surely, 231934843913 is an apocalyptic number.

It is an amenable number.

31934843913 is a deficient number, since it is larger than the sum of its proper divisors (16727775415).

31934843913 is a wasteful number, since it uses less digits than its factorization.

31934843913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520706863.

The product of its digits is 839808, while the sum is 48.

The spelling of 31934843913 in words is "thirty-one billion, nine hundred thirty-four million, eight hundred forty-three thousand, nine hundred thirteen".

Divisors: 1 3 7 21 1520706853 4562120559 10644947971 31934843913