Search a number
-
+
130744540 = 2256537227
BaseRepresentation
bin1111100101100…
…00000011011100
3100010000111210101
413302300003130
5231432311130
620550150444
73145211263
oct762600334
9303014711
10130744540
1167890343
1237952424
1321119644
14135155da
15b7291ca
hex7cb00dc

130744540 has 12 divisors (see below), whose sum is σ = 274563576. Its totient is φ = 52297808.

The previous prime is 130744517. The next prime is 130744543. The reversal of 130744540 is 45447031.

It is a junction number, because it is equal to n+sod(n) for n = 130744499 and 130744508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130744543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3268594 + ... + 3268633.

It is an arithmetic number, because the mean of its divisors is an integer number (22880298).

Almost surely, 2130744540 is an apocalyptic number.

130744540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130744540 is an abundant number, since it is smaller than the sum of its proper divisors (143819036).

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

130744540 is a wasteful number, since it uses less digits than its factorization.

130744540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6537236 (or 6537234 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 130744540 is about 11434.3578744064. The cubic root of 130744540 is about 507.5449611132.

It can be divided in two parts, 13074 and 4540, that multiplied together give a triangular number (59355960 = T10895).

The spelling of 130744540 in words is "one hundred thirty million, seven hundred forty-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 6537227 13074454 26148908 32686135 65372270 130744540