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57450145 = 553431503
BaseRepresentation
bin1101101100100…
…1111010100001
311000002202210011
43123021322201
5104201401040
65411204521
71265214064
oct333117241
9130082704
1057450145
112a47a165
12172a6741
13bb9648c
1478b68db
15509c3ea
hex36c9ea1

57450145 has 16 divisors (see below), whose sum is σ = 70543872. Its totient is φ = 44898880.

The previous prime is 57450139. The next prime is 57450163. The reversal of 57450145 is 54105475.

It is not a de Polignac number, because 57450145 - 23 = 57450137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113964 + ... + 114466.

It is an arithmetic number, because the mean of its divisors is an integer number (4408992).

Almost surely, 257450145 is an apocalyptic number.

It is an amenable number.

57450145 is a deficient number, since it is larger than the sum of its proper divisors (13093727).

57450145 is a wasteful number, since it uses less digits than its factorization.

57450145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 57450145 is about 7579.5873898254. The cubic root of 57450145 is about 385.8605476727.

The spelling of 57450145 in words is "fifty-seven million, four hundred fifty thousand, one hundred forty-five".

Divisors: 1 5 53 265 431 503 2155 2515 22843 26659 114215 133295 216793 1083965 11490029 57450145