Search a number
-
+
31445608524 = 22311238224307
BaseRepresentation
bin11101010010010011…
…011110100001001100
310000011111110102110120
4131102103132201030
51003400033433044
622240152304540
72162152155651
oct352223364114
9100144412416
1031445608524
1112377254120
1261170a2150
132c71a22165
14174442dc28
15c409cc519
hex7524de84c

31445608524 has 24 divisors (see below), whose sum is σ = 80043367488. Its totient is φ = 9528972240.

The previous prime is 31445608511. The next prime is 31445608531. The reversal of 31445608524 is 42580654413.

It is a super-2 number, since 2×314456085242 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119112022 + ... + 119112285.

It is an arithmetic number, because the mean of its divisors is an integer number (3335140312).

Almost surely, 231445608524 is an apocalyptic number.

It is an amenable number.

31445608524 is an abundant number, since it is smaller than the sum of its proper divisors (48597758964).

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

31445608524 is a wasteful number, since it uses less digits than its factorization.

31445608524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238224325 (or 238224323 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 31445608524 in words is "thirty-one billion, four hundred forty-five million, six hundred eight thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 238224307 476448614 714672921 952897228 1429345842 2620467377 2858691684 5240934754 7861402131 10481869508 15722804262 31445608524