Search a number
-
+
57425645 = 540928081
BaseRepresentation
bin1101101100001…
…1111011101101
311000001112011202
43123003323231
5104200110040
65410455245
71265052464
oct333037355
9130045152
1057425645
112a462812
1217294525
13bb88294
1478ab9db
155095015
hex36c3eed

57425645 has 8 divisors (see below), whose sum is σ = 69081720. Its totient is φ = 45826560.

The previous prime is 57425639. The next prime is 57425651. The reversal of 57425645 is 54652475.

It is an interprime number because it is at equal distance from previous prime (57425639) and next prime (57425651).

It can be written as a sum of positive squares in 4 ways, for example, as 10118761 + 47306884 = 3181^2 + 6878^2 .

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

It is not a de Polignac number, because 57425645 - 218 = 57163501 is a prime.

It is a super-3 number, since 3×574256453 (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57425599 and 57425608.

It is a congruent number.

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, 11996 + ... + 16085.

It is an arithmetic number, because the mean of its divisors is an integer number (8635215).

Almost surely, 257425645 is an apocalyptic number.

It is an amenable number.

57425645 is a deficient number, since it is larger than the sum of its proper divisors (11656075).

57425645 is a wasteful number, since it uses less digits than its factorization.

57425645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28495.

The product of its digits is 168000, while the sum is 38.

The square root of 57425645 is about 7577.9710345184. The cubic root of 57425645 is about 385.8056889334.

The spelling of 57425645 in words is "fifty-seven million, four hundred twenty-five thousand, six hundred forty-five".

Divisors: 1 5 409 2045 28081 140405 11485129 57425645