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57977427 = 3109177301
BaseRepresentation
bin1101110100101…
…0101001010011
311001002120002010
43131022221103
5104320234202
65430354003
71302541254
oct335125123
9131076063
1057977427
112a7aa332
12174bb903
13c01c491
1479b2b2b
15515376c
hex374aa53

57977427 has 8 divisors (see below), whose sum is σ = 78012880. Its totient is φ = 38296800.

The previous prime is 57977419. The next prime is 57977453. The reversal of 57977427 is 72477975.

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

It is not a de Polignac number, because 57977427 - 23 = 57977419 is a prime.

It is a super-2 number, since 2×579774272 = 6722764083080658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57977027) 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, 88324 + ... + 88977.

It is an arithmetic number, because the mean of its divisors is an integer number (9751610).

Almost surely, 257977427 is an apocalyptic number.

57977427 is a deficient number, since it is larger than the sum of its proper divisors (20035453).

57977427 is a wasteful number, since it uses less digits than its factorization.

57977427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177413.

The product of its digits is 864360, while the sum is 48.

The square root of 57977427 is about 7614.2909715876. The cubic root of 57977427 is about 387.0374407086.

The spelling of 57977427 in words is "fifty-seven million, nine hundred seventy-seven thousand, four hundred twenty-seven".

Divisors: 1 3 109 327 177301 531903 19325809 57977427