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28500157068 = 22321839108751
BaseRepresentation
bin11010100010101111…
…011110001010001100
32201120020001222122220
4122202233132022030
5431332020011233
621032013135340
72026155223635
oct324257361214
981506058586
1028500157068
11110a5660919
12563478a550
1328c2729486
14154518688c
15b1c110eb3
hex6a2bde28c

28500157068 has 24 divisors (see below), whose sum is σ = 66504023040. Its totient is φ = 9499530000.

The previous prime is 28500157019. The next prime is 28500157139. The reversal of 28500157068 is 86075100582.

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, 207693 + ... + 316443.

It is an arithmetic number, because the mean of its divisors is an integer number (2771000960).

Almost surely, 228500157068 is an apocalyptic number.

It is an amenable number.

28500157068 is an abundant number, since it is smaller than the sum of its proper divisors (38003865972).

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

28500157068 is a wasteful number, since it uses less digits than its factorization.

28500157068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130597 (or 130595 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The spelling of 28500157068 in words is "twenty-eight billion, five hundred million, one hundred fifty-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 21839 43678 65517 87356 108751 131034 217502 262068 326253 435004 652506 1305012 2375013089 4750026178 7125039267 9500052356 14250078534 28500157068