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56162115189 = 326240235021
BaseRepresentation
bin110100010011100001…
…011101111001110101
312100222000221001112100
4310103201131321311
51410010000141224
641444525012313
74025515050105
oct642341357165
9170860831470
1056162115189
1121900060434
12aa746b4099
1353b05b9c2b
142a0ac9d205
1516da851ac9
hexd1385de75

56162115189 has 6 divisors (see below), whose sum is σ = 81123055286. Its totient is φ = 37441410120.

The previous prime is 56162115109. The next prime is 56162115199. The reversal of 56162115189 is 98151126165.

56162115189 is a `hidden beast` number, since 5 + 6 + 1 + 621 + 1 + 5 + 18 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29874356964 + 26287758225 = 172842^2 + 162135^2 .

It is not a de Polignac number, because 56162115189 - 28 = 56162114933 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 (56162115109) 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, 3120117502 + ... + 3120117519.

Almost surely, 256162115189 is an apocalyptic number.

It is an amenable number.

56162115189 is a deficient number, since it is larger than the sum of its proper divisors (24960940097).

56162115189 is a wasteful number, since it uses less digits than its factorization.

56162115189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6240235027 (or 6240235024 counting only the distinct ones).

The product of its digits is 129600, while the sum is 45.

The spelling of 56162115189 in words is "fifty-six billion, one hundred sixty-two million, one hundred fifteen thousand, one hundred eighty-nine".

Divisors: 1 3 9 6240235021 18720705063 56162115189