Search a number
-
+
57164442468 = 22371031660067
BaseRepresentation
bin110101001111010001…
…000010101101100100
312110112212222120001220
4311033101002231210
51414033044124333
642132212220340
74062405513060
oct651721025544
9173485876056
1057164442468
1122274923791
12b0b430a6b0
1355101604b3
142aa4054aa0
1517488428b3
hexd4f442b64

57164442468 has 48 divisors (see below), whose sum is σ = 152586599424. Its totient is φ = 16316831520.

The previous prime is 57164442457. The next prime is 57164442481. The reversal of 57164442468 is 86424446175.

It is a self number, because there is not a number n which added to its sum of digits gives 57164442468.

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 15 ways as a sum of consecutive naturals, for example, 243430 + ... + 416637.

It is an arithmetic number, because the mean of its divisors is an integer number (3178887488).

Almost surely, 257164442468 is an apocalyptic number.

It is an amenable number.

57164442468 is an abundant number, since it is smaller than the sum of its proper divisors (95422156956).

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

57164442468 is a wasteful number, since it uses less digits than its factorization.

57164442468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661112 (or 661110 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 51.

The spelling of 57164442468 in words is "fifty-seven billion, one hundred sixty-four million, four hundred forty-two thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1031 2062 3093 4124 6186 7217 12372 14434 21651 28868 43302 86604 660067 1320134 1980201 2640268 3960402 4620469 7920804 9240938 13861407 18481876 27722814 55445628 680529077 1361058154 2041587231 2722116308 4083174462 4763703539 8166348924 9527407078 14291110617 19054814156 28582221234 57164442468