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130044144 = 2432709253
BaseRepresentation
bin1111100000001…
…01000011110000
3100001200221000210
413300011003300
5231242403034
620523144120
73136233306
oct760050360
9301627023
10130044144
11674520aa
1237675040
1320c328c9
14133b2276
15b63b8e9
hex7c050f0

130044144 has 20 divisors (see below), whose sum is σ = 335947496. Its totient is φ = 43348032.

The previous prime is 130044143. The next prime is 130044179. The reversal of 130044144 is 441440031.

It is a super-2 number, since 2×1300441442 = 33822958777385472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130044144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130044143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1354579 + ... + 1354674.

Almost surely, 2130044144 is an apocalyptic number.

It is an amenable number.

130044144 is an abundant number, since it is smaller than the sum of its proper divisors (205903352).

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

130044144 is a wasteful number, since it uses less digits than its factorization.

130044144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709264 (or 2709258 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 130044144 is about 11403.6899291414. The cubic root of 130044144 is about 506.6370350476.

Adding to 130044144 its reverse (441440031), we get a palindrome (571484175).

The spelling of 130044144 in words is "one hundred thirty million, forty-four thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 2709253 5418506 8127759 10837012 16255518 21674024 32511036 43348048 65022072 130044144