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28760390344 = 2372617196247
BaseRepresentation
bin11010110010010000…
…001011101011001000
32202020100202012121101
4122302100023223020
5432400124442334
621113510551144
72035465166350
oct326220135310
982210665541
1028760390344
1111219543a44
1256a79684b4
13293461296a
14156b967b60
15b34db7214
hex6b240bac8

28760390344 has 32 divisors (see below), whose sum is σ = 61653271680. Its totient is φ = 12321108864.

The previous prime is 28760390333. The next prime is 28760390369. The reversal of 28760390344 is 44309306782.

It is a junction number, because it is equal to n+sod(n) for n = 28760390294 and 28760390303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48429 + ... + 244675.

It is an arithmetic number, because the mean of its divisors is an integer number (1926664740).

Almost surely, 228760390344 is an apocalyptic number.

It is an amenable number.

28760390344 is an abundant number, since it is smaller than the sum of its proper divisors (32892881336).

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

28760390344 is a wasteful number, since it uses less digits than its factorization.

28760390344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198877 (or 198873 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 28760390344 in words is "twenty-eight billion, seven hundred sixty million, three hundred ninety thousand, three hundred forty-four".

Divisors: 1 2 4 7 8 14 28 56 2617 5234 10468 18319 20936 36638 73276 146552 196247 392494 784988 1373729 1569976 2747458 5494916 10989832 513578399 1027156798 2054313596 3595048793 4108627192 7190097586 14380195172 28760390344