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56123641 = 773109831
BaseRepresentation
bin1101011000011…
…0000011111001
310220121101011101
43112012003321
5103331424031
65322531401
71251020530
oct326060371
9126541141
1056123641
1129753582
1216966b61
13b820772
14764d317
154dd9361
hex35860f9

56123641 has 8 divisors (see below), whose sum is σ = 65020544. Its totient is φ = 47446560.

The previous prime is 56123623. The next prime is 56123659. The reversal of 56123641 is 14632165.

56123641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56123623) and next prime (56123659).

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

It is not a de Polignac number, because 56123641 - 29 = 56123129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56123741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54405 + ... + 55426.

It is an arithmetic number, because the mean of its divisors is an integer number (8127568).

Almost surely, 256123641 is an apocalyptic number.

It is an amenable number.

56123641 is a deficient number, since it is larger than the sum of its proper divisors (8896903).

56123641 is a wasteful number, since it uses less digits than its factorization.

56123641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109911.

The product of its digits is 4320, while the sum is 28.

The square root of 56123641 is about 7491.5713305020. The cubic root of 56123641 is about 382.8675971153.

The spelling of 56123641 in words is "fifty-six million, one hundred twenty-three thousand, six hundred forty-one".

Divisors: 1 7 73 511 109831 768817 8017663 56123641