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28315430706 = 2313136024721
BaseRepresentation
bin11010010111101110…
…110010111100110010
32201002100110220201210
4122113232302330302
5430442222240311
621001413540550
72021453122053
oct322756627462
981070426653
1028315430706
1111010360202
1255a2944756
13289338c234
14152881c72a
15b0acc23a6
hex697bb2f32

28315430706 has 16 divisors (see below), whose sum is σ = 57063159648. Its totient is φ = 9366427200.

The previous prime is 28315430687. The next prime is 28315430761. The reversal of 28315430706 is 60703451382.

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, 18011575 + ... + 18013146.

It is an arithmetic number, because the mean of its divisors is an integer number (3566447478).

Almost surely, 228315430706 is an apocalyptic number.

28315430706 is an abundant number, since it is smaller than the sum of its proper divisors (28747728942).

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

28315430706 is a wasteful number, since it uses less digits than its factorization.

28315430706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36024857.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 28315430706 in words is "twenty-eight billion, three hundred fifteen million, four hundred thirty thousand, seven hundred six".

Divisors: 1 2 3 6 131 262 393 786 36024721 72049442 108074163 216148326 4719238451 9438476902 14157715353 28315430706