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28305528050 = 2523161299371
BaseRepresentation
bin11010010111001001…
…000001010011110010
32201001122211210211202
4122113021001103302
5430432203344200
621000421411202
72021303006252
oct322711012362
981048753752
1028305528050
1111005807198
12559b569b02
132891302a87
1415273a1962
15b09eb81d5
hex6972414f2

28305528050 has 48 divisors (see below), whose sum is σ = 55237726464. Its totient is φ = 10777320000.

The previous prime is 28305528047. The next prime is 28305528107. The reversal of 28305528050 is 5082550382.

It is a junction number, because it is equal to n+sod(n) for n = 28305527995 and 28305528013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55136 + ... + 244235.

It is an arithmetic number, because the mean of its divisors is an integer number (1150785968).

Almost surely, 228305528050 is an apocalyptic number.

28305528050 is a deficient number, since it is larger than the sum of its proper divisors (26932198414).

28305528050 is a wasteful number, since it uses less digits than its factorization.

28305528050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299475 (or 299470 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 28305528050 in words is "twenty-eight billion, three hundred five million, five hundred twenty-eight thousand, fifty".

Divisors: 1 2 5 10 25 31 50 61 62 122 155 305 310 610 775 1525 1550 1891 3050 3782 9455 18910 47275 94550 299371 598742 1496855 2993710 7484275 9280501 14968550 18261631 18561002 36523262 46402505 91308155 92805010 182616310 232012525 456540775 464025050 566110561 913081550 1132221122 2830552805 5661105610 14152764025 28305528050