Search a number
-
+
130608440 = 23512172683
BaseRepresentation
bin1111100100011…
…10110100111000
3100002202121002122
413302032310320
5231413432230
620543220412
73144103424
oct762166470
9302677078
10130608440
11677a8066
12378a7708
132109c701
14134bbb84
15b6edbe5
hex7c8ed38

130608440 has 32 divisors (see below), whose sum is σ = 294220080. Its totient is φ = 52180992.

The previous prime is 130608427. The next prime is 130608449. The reversal of 130608440 is 44806031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130608449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47339 + ... + 50021.

Almost surely, 2130608440 is an apocalyptic number.

130608440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130608440 is an abundant number, since it is smaller than the sum of its proper divisors (163611640).

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

130608440 is a wasteful number, since it uses less digits than its factorization.

130608440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911 (or 3907 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 130608440 is about 11428.4049630734. The cubic root of 130608440 is about 507.3687884235.

The spelling of 130608440 in words is "one hundred thirty million, six hundred eight thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1217 2434 2683 4868 5366 6085 9736 10732 12170 13415 21464 24340 26830 48680 53660 107320 3265211 6530422 13060844 16326055 26121688 32652110 65304220 130608440