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56088169 = 263213263
BaseRepresentation
bin1101010111110…
…1011001101001
310220112120111121
43111331121221
5103324310134
65322055241
71250512234
oct325753151
9126476447
1056088169
1129729965
121694a521
13b80a587
14764041b
154dcdab4
hex357d669

56088169 has 4 divisors (see below), whose sum is σ = 56301696. Its totient is φ = 55874644.

The previous prime is 56088161. The next prime is 56088181. The reversal of 56088169 is 96188065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96188065 = 519237613.

It is a cyclic number.

It is not a de Polignac number, because 56088169 - 23 = 56088161 is a prime.

It is a super-2 number, since 2×560881692 = 6291765403545122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56088161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106369 + ... + 106894.

It is an arithmetic number, because the mean of its divisors is an integer number (14075424).

Almost surely, 256088169 is an apocalyptic number.

It is an amenable number.

56088169 is a deficient number, since it is larger than the sum of its proper divisors (213527).

56088169 is a wasteful number, since it uses less digits than its factorization.

56088169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213526.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 56088169 is about 7489.2034956997. The cubic root of 56088169 is about 382.7869184483.

The spelling of 56088169 in words is "fifty-six million, eighty-eight thousand, one hundred sixty-nine".

Divisors: 1 263 213263 56088169