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28335029960 = 235782990481
BaseRepresentation
bin11010011000111001…
…100011111011001000
32201010201100122212002
4122120321203323020
5431012231424320
621003354010132
72022111531536
oct323071437310
981121318762
1028335029960
1111020427436
1255a9416948
132897462123
14152b281156
15b0c894675
hex698e63ec8

28335029960 has 32 divisors (see below), whose sum is σ = 63762665400. Its totient is φ = 11332439040.

The previous prime is 28335029941. The next prime is 28335029981. The reversal of 28335029960 is 6992053382.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10391355844 + 17943674116 = 101938^2 + 133954^2 .

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, 267920 + ... + 358400.

Almost surely, 228335029960 is an apocalyptic number.

28335029960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28335029960 is an abundant number, since it is smaller than the sum of its proper divisors (35427635440).

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

28335029960 is a wasteful number, since it uses less digits than its factorization.

28335029960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98321 (or 98317 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 28335029960 in words is "twenty-eight billion, three hundred thirty-five million, twenty-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 7829 15658 31316 39145 62632 78290 90481 156580 180962 313160 361924 452405 723848 904810 1809620 3619240 708375749 1416751498 2833502996 3541878745 5667005992 7083757490 14167514980 28335029960