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28300161942 = 2331379510299
BaseRepresentation
bin11010010110110100…
…100011001110010110
32201001021202011221000
4122112310203032112
5430424320140232
621000110404130
72021206256523
oct322664431626
981037664830
1028300161942
1111002781598
125599800646
132890174470
1415267a614a
15b097a827c
hex696d23396

28300161942 has 64 divisors (see below), whose sum is σ = 68584320000. Its totient is φ = 8597500704.

The previous prime is 28300161881. The next prime is 28300161979. The reversal of 28300161942 is 24916100382.

28300161942 is a `hidden beast` number, since 2 + 8 + 30 + 0 + 1 + 619 + 4 + 2 = 666.

It is a super-2 number, since 2×283001619422 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28300161897 and 28300161906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199692 + ... + 310607.

It is an arithmetic number, because the mean of its divisors is an integer number (1071630000).

Almost surely, 228300161942 is an apocalyptic number.

28300161942 is an abundant number, since it is smaller than the sum of its proper divisors (40284158058).

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

28300161942 is a wasteful number, since it uses less digits than its factorization.

28300161942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510402 (or 510396 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 28300161942 in words is "twenty-eight billion, three hundred million, one hundred sixty-one thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 79 117 158 234 237 351 474 702 711 1027 1422 2054 2133 3081 4266 6162 9243 18486 27729 55458 510299 1020598 1530897 3061794 4592691 6633887 9185382 13267774 13778073 19901661 27556146 39803322 40313621 59704983 80627242 119409966 120940863 179114949 241881726 358229898 362822589 524077073 725645178 1048154146 1088467767 1572231219 2176935534 3144462438 4716693657 9433387314 14150080971 28300161942