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56434481 = 405113931
BaseRepresentation
bin1101011101000…
…1111100110001
310221012011112222
43113101330301
5103421400411
65333330425
71253454005
oct327217461
9127164488
1056434481
1129946074
1216a96a15
13b8cc0ac
1476d0705
154e4b4db
hex35d1f31

56434481 has 4 divisors (see below), whose sum is σ = 56452464. Its totient is φ = 56416500.

The previous prime is 56434471. The next prime is 56434489. The reversal of 56434481 is 18443465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18443465 = 53688693.

It is a cyclic number.

It is not a de Polignac number, because 56434481 - 210 = 56433457 is a prime.

It is a super-2 number, since 2×564344812 = 6369701291478722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56434489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2915 + ... + 11016.

It is an arithmetic number, because the mean of its divisors is an integer number (14113116).

Almost surely, 256434481 is an apocalyptic number.

It is an amenable number.

56434481 is a deficient number, since it is larger than the sum of its proper divisors (17983).

56434481 is a wasteful number, since it uses less digits than its factorization.

56434481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17982.

The product of its digits is 46080, while the sum is 35.

The square root of 56434481 is about 7512.2886659127. The cubic root of 56434481 is about 383.5731317917.

The spelling of 56434481 in words is "fifty-six million, four hundred thirty-four thousand, four hundred eighty-one".

Divisors: 1 4051 13931 56434481