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130444724 = 2241397879
BaseRepresentation
bin1111100011001…
…10110110110100
3100002110021112002
413301212312310
5231343212344
620535514432
73142522214
oct761466664
9302407462
10130444724
11676a6063
1237828a18
1321043037
1413478244
15b6ba44e
hex7c66db4

130444724 has 12 divisors (see below), whose sum is σ = 228362400. Its totient is φ = 65198328.

The previous prime is 130444703. The next prime is 130444729. The reversal of 130444724 is 427444031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130444729) 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, 12617 + ... + 20495.

It is an arithmetic number, because the mean of its divisors is an integer number (19030200).

Almost surely, 2130444724 is an apocalyptic number.

It is an amenable number.

130444724 is a deficient number, since it is larger than the sum of its proper divisors (97917676).

130444724 is a wasteful number, since it uses less digits than its factorization.

130444724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12022 (or 12020 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 130444724 is about 11421.2400377542. The cubic root of 130444724 is about 507.1567063674.

Adding to 130444724 its reverse (427444031), we get a palindrome (557888755).

The spelling of 130444724 in words is "one hundred thirty million, four hundred forty-four thousand, seven hundred twenty-four".

Divisors: 1 2 4 4139 7879 8278 15758 16556 31516 32611181 65222362 130444724