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56400244101 = 326266693789
BaseRepresentation
bin110100100001101101…
…110110110110000101
312101120122000020222200
4310201231312312011
51411001430302401
641524312545113
74034436110355
oct644155666605
9171518006880
1056400244101
1121a12516193
12ab203b2199
13541aa34206
142a30768b65
1517016dd686
hexd21b76d85

56400244101 has 6 divisors (see below), whose sum is σ = 81467019270. Its totient is φ = 37600162728.

The previous prime is 56400244099. The next prime is 56400244133. The reversal of 56400244101 is 10144200465.

56400244101 is a `hidden beast` number, since 5 + 6 + 400 + 244 + 10 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 39362163201 + 17038080900 = 198399^2 + 130530^2 .

It is not a de Polignac number, because 56400244101 - 21 = 56400244099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56400244141) 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 5 ways as a sum of consecutive naturals, for example, 3133346886 + ... + 3133346903.

It is an arithmetic number, because the mean of its divisors is an integer number (13577836545).

Almost surely, 256400244101 is an apocalyptic number.

It is an amenable number.

56400244101 is a deficient number, since it is larger than the sum of its proper divisors (25066775169).

56400244101 is a wasteful number, since it uses less digits than its factorization.

56400244101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6266693795 (or 6266693792 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 56400244101 its reverse (10144200465), we get a palindrome (66544444566).

The spelling of 56400244101 in words is "fifty-six billion, four hundred million, two hundred forty-four thousand, one hundred one".

Divisors: 1 3 9 6266693789 18800081367 56400244101