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56446132901 = 612966931189
BaseRepresentation
bin110100100100011100…
…111010001010100101
312101200211100122120212
4310210130322022211
51411100202223101
641533032305205
74035534133064
oct644434721245
9171624318525
1056446132901
1121a36409114
12ab33842205
1354273b0252
142a368b21db
1517057551bb
hexd2473a2a5

56446132901 has 8 divisors (see below), whose sum is σ = 57375252600. Its totient is φ = 55517135040.

The previous prime is 56446132877. The next prime is 56446132921. The reversal of 56446132901 is 10923164465.

It can be written as a sum of positive squares in 4 ways, for example, as 11861388100 + 44584744801 = 108910^2 + 211151^2 .

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 56446132901 - 26 = 56446132837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56446132921) 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 in 7 ways as a sum of consecutive naturals, for example, 1794215 + ... + 1825403.

It is an arithmetic number, because the mean of its divisors is an integer number (7171906575).

Almost surely, 256446132901 is an apocalyptic number.

It is an amenable number.

56446132901 is a deficient number, since it is larger than the sum of its proper divisors (929119699).

56446132901 is a wasteful number, since it uses less digits than its factorization.

56446132901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60919.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 56446132901 in words is "fifty-six billion, four hundred forty-six million, one hundred thirty-two thousand, nine hundred one".

Divisors: 1 61 29669 31189 1809809 1902529 925346441 56446132901