Search a number
-
+
130956605 = 5132969473
BaseRepresentation
bin1111100111000…
…11110100111101
3100010102021200122
413303203310331
5232011102410
620554504325
73150053453
oct763436475
9303367618
10130956605
1167a156aa
1237a350a5
1321192020
141356c9d3
15b76be55
hex7ce3d3d

130956605 has 16 divisors (see below), whose sum is σ = 175074480. Its totient is φ = 93370368.

The previous prime is 130956601. The next prime is 130956611. The reversal of 130956605 is 506659031.

It can be written as a sum of positive squares in 8 ways, for example, as 6120676 + 124835929 = 2474^2 + 11173^2 .

It is not a de Polignac number, because 130956605 - 22 = 130956601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130956601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32852 + ... + 36621.

It is an arithmetic number, because the mean of its divisors is an integer number (10942155).

Almost surely, 2130956605 is an apocalyptic number.

It is an amenable number.

130956605 is a deficient number, since it is larger than the sum of its proper divisors (44117875).

130956605 is a wasteful number, since it uses less digits than its factorization.

130956605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69520.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 130956605 is about 11443.6272658629. The cubic root of 130956605 is about 507.8192221059.

The spelling of 130956605 in words is "one hundred thirty million, nine hundred fifty-six thousand, six hundred five".

Divisors: 1 5 13 29 65 145 377 1885 69473 347365 903149 2014717 4515745 10073585 26191321 130956605