Search a number
-
+
130144976 = 2413625697
BaseRepresentation
bin1111100000111…
…01101011010000
3100001220001100022
413300131223100
5231304114401
620525243012
73140133263
oct760355320
9301801308
10130144976
1167510935
1237703468
1320c69780
14133dacda
15b65b71b
hex7c1dad0

130144976 has 20 divisors (see below), whose sum is σ = 271552932. Its totient is φ = 60066816.

The previous prime is 130144969. The next prime is 130144991. The reversal of 130144976 is 679441031.

It can be written as a sum of positive squares in 2 ways, for example, as 89491600 + 40653376 = 9460^2 + 6376^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312641 + ... + 313056.

Almost surely, 2130144976 is an apocalyptic number.

130144976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

130144976 is an abundant number, since it is smaller than the sum of its proper divisors (141407956).

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

130144976 is a wasteful number, since it uses less digits than its factorization.

130144976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625718 (or 625712 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 130144976 is about 11408.1100976454. The cubic root of 130144976 is about 506.7679445126.

The spelling of 130144976 in words is "one hundred thirty million, one hundred forty-four thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 13 16 26 52 104 208 625697 1251394 2502788 5005576 8134061 10011152 16268122 32536244 65072488 130144976