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56631852060 = 22357643209701
BaseRepresentation
bin110100101111100001…
…010111110000011100
312102011202211011101020
4310233201113300130
51411440223231220
642003305044140
74043250541260
oct645741276034
9172152734336
1056631852060
1122021227723
12ab85a86650
135456a07344
142a534180a0
151716bdd040
hexd2f857c1c

56631852060 has 96 divisors (see below), whose sum is σ = 181504630272. Its totient is φ = 12924230400.

The previous prime is 56631851989. The next prime is 56631852061. The reversal of 56631852060 is 6025813665.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56631852061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165210 + ... + 374910.

It is an arithmetic number, because the mean of its divisors is an integer number (1890673232).

Almost surely, 256631852060 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 56631852060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90752315136).

56631852060 is an abundant number, since it is smaller than the sum of its proper divisors (124872778212).

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

56631852060 is a wasteful number, since it uses less digits than its factorization.

56631852060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210363 (or 210361 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 56631852060 in words is "fifty-six billion, six hundred thirty-one million, eight hundred fifty-two thousand, sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 643 1286 1929 2572 3215 3858 4501 6430 7716 9002 9645 12860 13503 18004 19290 22505 27006 38580 45010 54012 67515 90020 135030 209701 270060 419402 629103 838804 1048505 1258206 1467907 2097010 2516412 2935814 3145515 4194020 4403721 5871628 6291030 7339535 8807442 12582060 14679070 17614884 22018605 29358140 44037210 88074420 134837743 269675486 404513229 539350972 674188715 809026458 943864201 1348377430 1618052916 1887728402 2022566145 2696754860 2831592603 3775456804 4045132290 4719321005 5663185206 8090264580 9438642010 11326370412 14157963015 18877284020 28315926030 56631852060