Search a number
-
+
57378774027 = 3523118730809
BaseRepresentation
bin110101011100000010…
…101001110000001011
312111002211021201200210
4311130002221300023
51420002431232102
642205350132203
74100620350321
oct653402516013
9174084251623
1057378774027
1122374905203
12b154051063
135545694ac3
142ac46c7d11
15175c57d36c
hexd5c0a9c0b

57378774027 has 16 divisors (see below), whose sum is σ = 76718378880. Its totient is φ = 38145972672.

The previous prime is 57378774001. The next prime is 57378774053. The reversal of 57378774027 is 72047787375.

It is an interprime number because it is at equal distance from previous prime (57378774001) and next prime (57378774053).

It is not a de Polignac number, because 57378774027 - 27 = 57378773899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57378774067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1846999 + ... + 1877807.

It is an arithmetic number, because the mean of its divisors is an integer number (4794898680).

Almost surely, 257378774027 is an apocalyptic number.

57378774027 is a deficient number, since it is larger than the sum of its proper divisors (19339604853).

57378774027 is a wasteful number, since it uses less digits than its factorization.

57378774027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32522.

The product of its (nonzero) digits is 16134720, while the sum is 57.

It can be divided in two parts, 57378 and 774027, that added together give a triangular number (831405 = T1289).

The spelling of 57378774027 in words is "fifty-seven billion, three hundred seventy-eight million, seven hundred seventy-four thousand, twenty-seven".

Divisors: 1 3 523 1187 1569 3561 30809 92427 620801 1862403 16113107 36570283 48339321 109710849 19126258009 57378774027