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56161246 = 228080623
BaseRepresentation
bin1101011000111…
…1001111011110
310220200021202011
43112033033132
5103334124441
65323421434
71251235261
oct326171736
9126607664
1056161246
1129779859
121698487a
13b83490b
14765ccd8
154de5581
hex358f3de

56161246 has 4 divisors (see below), whose sum is σ = 84241872. Its totient is φ = 28080622.

The previous prime is 56161219. The next prime is 56161247. The reversal of 56161246 is 64216165.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56161247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040310 + ... + 14040313.

It is an arithmetic number, because the mean of its divisors is an integer number (21060468).

Almost surely, 256161246 is an apocalyptic number.

56161246 is a deficient number, since it is larger than the sum of its proper divisors (28080626).

56161246 is a wasteful number, since it uses less digits than its factorization.

56161246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28080625.

The product of its digits is 8640, while the sum is 31.

The square root of 56161246 is about 7494.0807308168. The cubic root of 56161246 is about 382.9530900333.

The spelling of 56161246 in words is "fifty-six million, one hundred sixty-one thousand, two hundred forty-six".

Divisors: 1 2 28080623 56161246