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130392177561 = 3243649331921
BaseRepresentation
bin111100101101111111…
…0101011101110011001
3110110120020212221002200
41321123332223232121
54114020344140221
6135522404520413
712264145136112
oct1713376535631
9413506787080
10130392177561
1150331a91a18
12213300b0109
13c3b0207769
14644d5d5209
1535d24ce426
hex1e5bfabb99

130392177561 has 12 divisors (see below), whose sum is σ = 188349138900. Its totient is φ = 86925864960.

The previous prime is 130392177529. The next prime is 130392177571. The reversal of 130392177561 is 165771293031.

130392177561 is a `hidden beast` number, since 1 + 30 + 39 + 21 + 7 + 7 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 105160761225 + 25231416336 = 324285^2 + 158844^2 .

It is not a de Polignac number, because 130392177561 - 25 = 130392177529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130392177571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226881 + ... + 558801.

It is an arithmetic number, because the mean of its divisors is an integer number (15695761575).

Almost surely, 2130392177561 is an apocalyptic number.

It is an amenable number.

130392177561 is a deficient number, since it is larger than the sum of its proper divisors (57956961339).

130392177561 is a wasteful number, since it uses less digits than its factorization.

130392177561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375576 (or 375573 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The spelling of 130392177561 in words is "one hundred thirty billion, three hundred ninety-two million, one hundred seventy-seven thousand, five hundred sixty-one".

Divisors: 1 3 9 43649 130947 331921 392841 995763 2987289 14488019729 43464059187 130392177561