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28831450450 = 2521124765529
BaseRepresentation
bin11010110110011111…
…010000010101010010
32202102022110102202011
4122312133100111102
5433021322403300
621124530013134
72040320166565
oct326637202522
982368412664
1028831450450
1111255669500
1257077171aa
132946262b6a
1415771844dc
15b3b251eba
hex6b67d0552

28831450450 has 36 divisors (see below), whose sum is σ = 58944840570. Its totient is φ = 10484161600.

The previous prime is 28831450433. The next prime is 28831450471. The reversal of 28831450450 is 5405413882.

It can be written as a sum of positive squares in 3 ways, for example, as 18476149329 + 10355301121 = 135927^2 + 101761^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2376715 + ... + 2388814.

Almost surely, 228831450450 is an apocalyptic number.

28831450450 is an abundant number, since it is smaller than the sum of its proper divisors (30113390120).

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

28831450450 is a wasteful number, since it uses less digits than its factorization.

28831450450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4765563 (or 4765547 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 28831450450 in words is "twenty-eight billion, eight hundred thirty-one million, four hundred fifty thousand, four hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 121 242 275 550 605 1210 3025 6050 4765529 9531058 23827645 47655290 52420819 104841638 119138225 238276450 262104095 524208190 576629009 1153258018 1310520475 2621040950 2883145045 5766290090 14415725225 28831450450