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56745370 = 25112232039
BaseRepresentation
bin1101100001110…
…1110110011010
310221202222000101
43120131312122
5104011322440
65344130014
71256220253
oct330356632
9127688011
1056745370
112a038700
121700690a
13b9aa756
147771b2a
154ead69a
hex361dd9a

56745370 has 48 divisors (see below), whose sum is σ = 117210240. Its totient is φ = 19727840.

The previous prime is 56745349. The next prime is 56745379. The reversal of 56745370 is 7354765.

It is not an unprimeable number, because it can be changed into a prime (56745379) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26811 + ... + 28849.

It is an arithmetic number, because the mean of its divisors is an integer number (2441880).

Almost surely, 256745370 is an apocalyptic number.

56745370 is an abundant number, since it is smaller than the sum of its proper divisors (60464870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56745370 is a wasteful number, since it uses less digits than its factorization.

56745370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091 (or 2080 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 56745370 is about 7532.9522764982. The cubic root of 56745370 is about 384.2761910957.

The spelling of 56745370 in words is "fifty-six million, seven hundred forty-five thousand, three hundred seventy".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 121 230 242 253 506 605 1210 1265 2039 2530 2783 4078 5566 10195 13915 20390 22429 27830 44858 46897 93794 112145 224290 234485 246719 468970 493438 515867 1031734 1233595 2467190 2579335 5158670 5674537 11349074 28372685 56745370