Search a number
-
+
31982961954 = 235330493659
BaseRepresentation
bin11101110010010101…
…010100010100100010
310001112221120210210110
4131302111110110202
51011000114240304
622405345512150
72211365456016
oct356225242442
9101487523713
1031982961954
1112622603769
126247042656
133029155278
14179594a546
15c72c73289
hex772554522

31982961954 has 8 divisors (see below), whose sum is σ = 63965923920. Its totient is φ = 10660987316.

The previous prime is 31982961863. The next prime is 31982961971. The reversal of 31982961954 is 45916928913.

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

31982961954 is an admirable number.

It is a super-2 number, since 2×319829619542 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31982961894 and 31982961903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2665246824 + ... + 2665246835.

It is an arithmetic number, because the mean of its divisors is an integer number (7995740490).

Almost surely, 231982961954 is an apocalyptic number.

31982961954 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31982961954 is a wasteful number, since it uses less digits than its factorization.

31982961954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330493664.

The product of its digits is 4199040, while the sum is 57.

The spelling of 31982961954 in words is "thirty-one billion, nine hundred eighty-two million, nine hundred sixty-one thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 5330493659 10660987318 15991480977 31982961954