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130548252 = 22310879021
BaseRepresentation
bin1111100100000…
…00001000011100
3100002122112112110
413302000020130
5231410021002
620542034020
73143433102
oct762001034
9302575473
10130548252
116776691a
1237878910
132107b1b3
14134a3c72
15b6dae6c
hex7c8021c

130548252 has 12 divisors (see below), whose sum is σ = 304612616. Its totient is φ = 43516080.

The previous prime is 130548251. The next prime is 130548263. The reversal of 130548252 is 252845031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1305482522 = 34085692200511008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130548251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5439499 + ... + 5439522.

Almost surely, 2130548252 is an apocalyptic number.

130548252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130548252 is an abundant number, since it is smaller than the sum of its proper divisors (174064364).

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

130548252 is a wasteful number, since it uses less digits than its factorization.

130548252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10879028 (or 10879026 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 130548252 is about 11425.7713962778. The cubic root of 130548252 is about 507.2908399012.

The spelling of 130548252 in words is "one hundred thirty million, five hundred forty-eight thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 10879021 21758042 32637063 43516084 65274126 130548252