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28490028246 = 2322933353959
BaseRepresentation
bin11010100010001000…
…110101010011010110
32201112112000101112100
4122202020311103112
5431321421400441
621031012102530
72026003146561
oct324210652326
981475011470
1028490028246
111109a972999
125631304a46
1328c05c10a4
141543aab4d8
15b1b2aecb6
hex6a22354d6

28490028246 has 24 divisors (see below), whose sum is σ = 61731642960. Its totient is φ = 9496176336.

The previous prime is 28490028241. The next prime is 28490028247. The reversal of 28490028246 is 64282009482.

28490028246 is a `hidden beast` number, since 284 + 90 + 0 + 282 + 4 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28490028241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501015 + ... + 554973.

It is an arithmetic number, because the mean of its divisors is an integer number (2572151790).

Almost surely, 228490028246 is an apocalyptic number.

28490028246 is an abundant number, since it is smaller than the sum of its proper divisors (33241614714).

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

28490028246 is a wasteful number, since it uses less digits than its factorization.

28490028246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83300 (or 83297 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 28490028246 in words is "twenty-eight billion, four hundred ninety million, twenty-eight thousand, two hundred forty-six".

Divisors: 1 2 3 6 9 18 29333 53959 58666 87999 107918 161877 175998 263997 323754 485631 527994 971262 1582779347 3165558694 4748338041 9496676082 14245014123 28490028246