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28944413024 = 2511340919571
BaseRepresentation
bin11010111101001110…
…001011000101100000
32202201012000112021012
4122331032023011200
5433234232204044
621144043120052
72043161310542
oct327516130540
982635015235
1028944413024
11113034039aa
125739513028
132963794817
14158818b692
15b4611759e
hex6bd38b160

28944413024 has 48 divisors (see below), whose sum is σ = 57632102640. Its totient is φ = 14308331520.

The previous prime is 28944413023. The next prime is 28944413039. The reversal of 28944413024 is 42031444982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28944413023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1469159 + ... + 1488729.

It is an arithmetic number, because the mean of its divisors is an integer number (1200668805).

Almost surely, 228944413024 is an apocalyptic number.

It is an amenable number.

28944413024 is a deficient number, since it is larger than the sum of its proper divisors (28687689616).

28944413024 is a wasteful number, since it uses less digits than its factorization.

28944413024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20103 (or 20095 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 28944413024 in words is "twenty-eight billion, nine hundred forty-four million, four hundred thirteen thousand, twenty-four".

Divisors: 1 2 4 8 16 32 113 226 409 452 818 904 1636 1808 3272 3616 6544 13088 19571 39142 46217 78284 92434 156568 184868 313136 369736 626272 739472 1478944 2211523 4423046 8004539 8846092 16009078 17692184 32018156 35384368 64036312 70768736 128072624 256145248 904512907 1809025814 3618051628 7236103256 14472206512 28944413024