Search a number
-
+
130817580 = 22352180293
BaseRepresentation
bin1111100110000…
…01111000101100
3100010011012222120
413303001320230
5231442130310
620551512540
73145634235
oct763017054
9303135876
10130817580
1167930203
1237988750
132114396a
141353408c
15b740b70
hex7cc1e2c

130817580 has 24 divisors (see below), whose sum is σ = 366289392. Its totient is φ = 34884672.

The previous prime is 130817563. The next prime is 130817623. The reversal of 130817580 is 85718031.

It is a super-2 number, since 2×1308175802 = 34226478474112800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1090087 + ... + 1090206.

It is an arithmetic number, because the mean of its divisors is an integer number (15262058).

Almost surely, 2130817580 is an apocalyptic number.

130817580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130817580 is an abundant number, since it is smaller than the sum of its proper divisors (235471812).

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

130817580 is a wasteful number, since it uses less digits than its factorization.

130817580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180305 (or 2180303 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 130817580 is about 11437.5513113603. The cubic root of 130817580 is about 507.6394562840.

The spelling of 130817580 in words is "one hundred thirty million, eight hundred seventeen thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2180293 4360586 6540879 8721172 10901465 13081758 21802930 26163516 32704395 43605860 65408790 130817580