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56146830 = 2351871561
BaseRepresentation
bin1101011000101…
…1101110001110
310220122112222020
43112023232032
5103333144310
65323231010
71251145245
oct326135616
9126575866
1056146830
1129769a43
1216978466
13b82b19c
14765795c
154de1170
hex358bb8e

56146830 has 16 divisors (see below), whose sum is σ = 134752464. Its totient is φ = 14972480.

The previous prime is 56146799. The next prime is 56146873. The reversal of 56146830 is 3864165.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56146791 and 56146800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935751 + ... + 935810.

It is an arithmetic number, because the mean of its divisors is an integer number (8422029).

Almost surely, 256146830 is an apocalyptic number.

56146830 is an abundant number, since it is smaller than the sum of its proper divisors (78605634).

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

56146830 is a wasteful number, since it uses less digits than its factorization.

56146830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871571.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 56146830 is about 7493.1188433122. The cubic root of 56146830 is about 382.9203205551.

The spelling of 56146830 in words is "fifty-six million, one hundred forty-six thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1871561 3743122 5614683 9357805 11229366 18715610 28073415 56146830