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56120075 = 52112931227
BaseRepresentation
bin1101011000010…
…1001100001011
310220121012021022
43112011030023
5103331320300
65322503055
71251004244
oct326051413
9126535238
1056120075
1129750930
1216964a8b
13b81bc5b
14764bccb
154dd8285
hex358530b

56120075 has 48 divisors (see below), whose sum is σ = 81423360. Its totient is φ = 37968000.

The previous prime is 56120063. The next prime is 56120087. The reversal of 56120075 is 57002165.

It is an interprime number because it is at equal distance from previous prime (56120063) and next prime (56120087).

It is not a de Polignac number, because 56120075 - 26 = 56120011 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 247112 + ... + 247338.

It is an arithmetic number, because the mean of its divisors is an integer number (1696320).

Almost surely, 256120075 is an apocalyptic number.

56120075 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56120075 is a deficient number, since it is larger than the sum of its proper divisors (25303285).

56120075 is a wasteful number, since it uses less digits than its factorization.

56120075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 56120075 is about 7491.3333259174. Note that the first 4 decimals coincide. The cubic root of 56120075 is about 382.8594880265.

The spelling of 56120075 in words is "fifty-six million, one hundred twenty thousand, seventy-five".

Divisors: 1 5 11 25 29 31 55 145 155 227 275 319 341 725 775 899 1135 1595 1705 2497 4495 5675 6583 7037 7975 8525 9889 12485 22475 32915 35185 49445 62425 72413 77407 164575 175925 204073 247225 362065 387035 1020365 1810325 1935175 2244803 5101825 11224015 56120075