Search a number
-
+
130537428 = 22374873191
BaseRepresentation
bin1111100011111…
…01011111010100
3100002121222200120
413301331133110
5231404144203
620541511540
73143356410
oct761753724
9302558616
10130537428
116775977a
12378725b0
13210762a8
141349dd40
15b6d7b53
hex7c7d7d4

130537428 has 48 divisors (see below), whose sum is σ = 348923904. Its totient is φ = 37208160.

The previous prime is 130537427. The next prime is 130537453. The reversal of 130537428 is 824735031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130537427) 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, 39313 + ... + 42503.

It is an arithmetic number, because the mean of its divisors is an integer number (7269248).

Almost surely, 2130537428 is an apocalyptic number.

It is an amenable number.

130537428 is an abundant number, since it is smaller than the sum of its proper divisors (218386476).

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

130537428 is a wasteful number, since it uses less digits than its factorization.

130537428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692 (or 3690 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 130537428 is about 11425.2977204097. The cubic root of 130537428 is about 507.2768193692.

The spelling of 130537428 in words is "one hundred thirty million, five hundred thirty-seven thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 487 974 1461 1948 2922 3191 3409 5844 6382 6818 9573 10227 12764 13636 19146 20454 22337 38292 40908 44674 67011 89348 134022 268044 1554017 3108034 4662051 6216068 9324102 10878119 18648204 21756238 32634357 43512476 65268714 130537428