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130043052 = 22323612307
BaseRepresentation
bin1111100000001…
…00110010101100
3100001200212112100
413300010302230
5231242334202
620523135100
73136230156
oct760046254
9301625470
10130043052
11674512a7
1237674490
1320c32269
14133b1ad6
15b63b41c
hex7c04cac

130043052 has 18 divisors (see below), whose sum is σ = 328720028. Its totient is φ = 43347672.

The previous prime is 130043041. The next prime is 130043059. The reversal of 130043052 is 250340031.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1300430522 = 33822390746949408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (130043059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1806118 + ... + 1806189.

Almost surely, 2130043052 is an apocalyptic number.

130043052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130043052 is an abundant number, since it is smaller than the sum of its proper divisors (198676976).

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

130043052 is a wasteful number, since it uses less digits than its factorization.

130043052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612317 (or 3612312 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 130043052 is about 11403.6420498015. The cubic root of 130043052 is about 506.6356169415.

Adding to 130043052 its reverse (250340031), we get a palindrome (380383083).

The spelling of 130043052 in words is "one hundred thirty million, forty-three thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 3612307 7224614 10836921 14449228 21673842 32510763 43347684 65021526 130043052