Search a number
-
+
56138941 = 1073071709
BaseRepresentation
bin1101011000100…
…1110010111101
310220122011011001
43112021302331
5103332421231
65323130301
71251113245
oct326116275
9126564131
1056138941
1129764021
1216973991
13b827711
147654b25
154dddb61
hex3589cbd

56138941 has 8 divisors (see below), whose sum is σ = 56881440. Its totient is φ = 55400688.

The previous prime is 56138917. The next prime is 56138987. The reversal of 56138941 is 14983165.

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

It is a cyclic number.

It is not a de Polignac number, because 56138941 - 25 = 56138909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56138941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56138041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31995 + ... + 33703.

It is an arithmetic number, because the mean of its divisors is an integer number (7110180).

Almost surely, 256138941 is an apocalyptic number.

It is an amenable number.

56138941 is a deficient number, since it is larger than the sum of its proper divisors (742499).

56138941 is a wasteful number, since it uses less digits than its factorization.

56138941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123.

The product of its digits is 25920, while the sum is 37.

The square root of 56138941 is about 7492.5924085059. The cubic root of 56138941 is about 382.9023854380.

The spelling of 56138941 in words is "fifty-six million, one hundred thirty-eight thousand, nine hundred forty-one".

Divisors: 1 107 307 1709 32849 182863 524663 56138941