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56202161 = 435922153
BaseRepresentation
bin1101011001100…
…1001110110001
310220202100212112
43112121032301
5103341432121
65324335105
71251465461
oct326311661
9126670775
1056202161
11297a7574
12169a4495
13b84a422
14766dba1
154e0275b
hex35993b1

56202161 has 8 divisors (see below), whose sum is σ = 58486560. Its totient is φ = 53962272.

The previous prime is 56202151. The next prime is 56202169. The reversal of 56202161 is 16120265.

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

It is a cyclic number.

It is not a de Polignac number, because 56202161 - 210 = 56201137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56202169) 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, 8540 + ... + 13613.

It is an arithmetic number, because the mean of its divisors is an integer number (7310820).

Almost surely, 256202161 is an apocalyptic number.

It is an amenable number.

56202161 is a deficient number, since it is larger than the sum of its proper divisors (2284399).

56202161 is a wasteful number, since it uses less digits than its factorization.

56202161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22255.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 56202161 is about 7496.8100549500. The cubic root of 56202161 is about 383.0460647169.

The spelling of 56202161 in words is "fifty-six million, two hundred two thousand, one hundred sixty-one".

Divisors: 1 43 59 2537 22153 952579 1307027 56202161