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28434483028 = 2272314679803
BaseRepresentation
bin11010011110110100…
…111100011101010100
32201101122111101211001
4122132310330131110
5431213211424103
621021305353044
72024430055300
oct323664743524
981348441731
1028434483028
1111071584a56
125616798784
1328b1c439b3
14153a56cd00
15b1648c01d
hex69ed3c754

28434483028 has 36 divisors (see below), whose sum is σ = 59751737472. Its totient is φ = 11793101040.

The previous prime is 28434483001. The next prime is 28434483037. The reversal of 28434483028 is 82038443482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2333826 + ... + 2345977.

Almost surely, 228434483028 is an apocalyptic number.

28434483028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28434483028 is an abundant number, since it is smaller than the sum of its proper divisors (31317254444).

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

28434483028 is a wasteful number, since it uses less digits than its factorization.

28434483028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679852 (or 4679843 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 46.

The spelling of 28434483028 in words is "twenty-eight billion, four hundred thirty-four million, four hundred eighty-three thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 31 49 62 98 124 196 217 434 868 1519 3038 6076 4679803 9359606 18719212 32758621 65517242 131034484 145073893 229310347 290147786 458620694 580295572 917241388 1015517251 2031034502 4062069004 7108620757 14217241514 28434483028