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627321057 = 31119009729
BaseRepresentation
bin100101011001000…
…010100011100001
31121201102012201020
4211121002203201
52241043233212
6142125400053
721355066236
oct4531024341
91551365636
10627321057
112a2119660
12156109029
139cc733bc
145d45978d
153a117d8c
hex256428e1

627321057 has 8 divisors (see below), whose sum is σ = 912467040. Its totient is φ = 380194560.

The previous prime is 627321041. The next prime is 627321103. The reversal of 627321057 is 750123726.

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

It is not a de Polignac number, because 627321057 - 24 = 627321041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 19009729 = 627321057 / (6 + 2 + 7 + 3 + 2 + 1 + 0 + 5 + 7).

It is not an unprimeable number, because it can be changed into a prime (627321017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9504832 + ... + 9504897.

It is an arithmetic number, because the mean of its divisors is an integer number (114058380).

Almost surely, 2627321057 is an apocalyptic number.

It is an amenable number.

627321057 is a deficient number, since it is larger than the sum of its proper divisors (285145983).

627321057 is a wasteful number, since it uses less digits than its factorization.

627321057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19009743.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 627321057 is about 25046.3781213971. The cubic root of 627321057 is about 856.0450529647.

The spelling of 627321057 in words is "six hundred twenty-seven million, three hundred twenty-one thousand, fifty-seven".

Divisors: 1 3 11 33 19009729 57029187 209107019 627321057