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56103052212 = 22321558418117
BaseRepresentation
bin110100010000000000…
…001010001110110100
312100210220210100100200
4310100000022032310
51404344340132322
641435015040500
74024200034614
oct642000121664
9170726710320
1056103052212
112187a78a559
12aa58970130
1353a12aa61c
142a030c6a44
1516d55868ac
hexd1000a3b4

56103052212 has 18 divisors (see below), whose sum is σ = 141816048738. Its totient is φ = 18701017392.

The previous prime is 56103052193. The next prime is 56103052217. The reversal of 56103052212 is 21225030165.

It is a happy number.

56103052212 is a `hidden beast` number, since 5 + 610 + 30 + 5 + 2 + 2 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53544108816 + 2558943396 = 231396^2 + 50586^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56103052217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 779209023 + ... + 779209094.

Almost surely, 256103052212 is an apocalyptic number.

It is an amenable number.

56103052212 is an abundant number, since it is smaller than the sum of its proper divisors (85712996526).

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

56103052212 is a wasteful number, since it uses less digits than its factorization.

56103052212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558418127 (or 1558418122 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 56103052212 its reverse (21225030165), we get a palindrome (77328082377).

The spelling of 56103052212 in words is "fifty-six billion, one hundred three million, fifty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 1558418117 3116836234 4675254351 6233672468 9350508702 14025763053 18701017404 28051526106 56103052212