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56122538 = 2130121569
BaseRepresentation
bin1101011000010…
…1110010101010
310220121022122112
43112011302222
5103331410123
65322522322
71251014363
oct326056252
9126538575
1056122538
112975276a
12169663a2
13b820104
14764cb6a
154dd8d78
hex3585caa

56122538 has 8 divisors (see below), whose sum is σ = 84252420. Its totient is φ = 28038400.

The previous prime is 56122531. The next prime is 56122541. The reversal of 56122538 is 83522165.

56122538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 33721249 + 22401289 = 5807^2 + 4733^2 .

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

It is a super-2 number, since 2×561225382 = 6299478543122888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56122531) 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 3 ways as a sum of consecutive naturals, for example, 8183 + ... + 13386.

Almost surely, 256122538 is an apocalyptic number.

56122538 is a deficient number, since it is larger than the sum of its proper divisors (28129882).

56122538 is a wasteful number, since it uses less digits than its factorization.

56122538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22872.

The product of its digits is 14400, while the sum is 32.

The square root of 56122538 is about 7491.4977140756. The cubic root of 56122538 is about 382.8650889285.

The spelling of 56122538 in words is "fifty-six million, one hundred twenty-two thousand, five hundred thirty-eight".

Divisors: 1 2 1301 2602 21569 43138 28061269 56122538