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56646454260 = 223511379433523
BaseRepresentation
bin110100110000011001…
…000100101111110100
312102012210022000211110
4310300121010233310
51412002443014020
642004550035020
74043515626264
oct646031045764
9172183260743
1056646454260
11220294a0560
12ab8a948a70
135459a4a8b6
142a553397a4
1517181248e0
hexd30644bf4

56646454260 has 192 divisors, whose sum is σ = 174218849280. Its totient is φ = 13638481920.

The previous prime is 56646454253. The next prime is 56646454279. The reversal of 56646454260 is 6245464665.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 108310359 + ... + 108310881.

It is an arithmetic number, because the mean of its divisors is an integer number (907389840).

Almost surely, 256646454260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56646454260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87109424640).

56646454260 is an abundant number, since it is smaller than the sum of its proper divisors (117572395020).

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

56646454260 is a wasteful number, since it uses less digits than its factorization.

56646454260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 56646454260 in words is "fifty-six billion, six hundred forty-six million, four hundred fifty-four thousand, two hundred sixty".