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30493985800 = 2352283538763
BaseRepresentation
bin11100011001100101…
…010100110000001000
32220201011210222111111
4130121211110300020
5444422430021200
622001515540104
72126445413455
oct343145246010
986634728444
1030493985800
1111a29072963
125ab045a634
132b4c8228a5
141693cb682c
15bd71a50ba
hex719954c08

30493985800 has 48 divisors (see below), whose sum is σ = 71149173840. Its totient is φ = 12154470720.

The previous prime is 30493985789. The next prime is 30493985831. The reversal of 30493985800 is 858939403.

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, 212782 + ... + 325981.

It is an arithmetic number, because the mean of its divisors is an integer number (1482274455).

Almost surely, 230493985800 is an apocalyptic number.

It is an amenable number.

30493985800 is an abundant number, since it is smaller than the sum of its proper divisors (40655188040).

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

30493985800 is a wasteful number, since it uses less digits than its factorization.

30493985800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539062 (or 539053 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 30493985800 in words is "thirty billion, four hundred ninety-three million, nine hundred eighty-five thousand, eight hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 283 566 1132 1415 2264 2830 5660 7075 11320 14150 28300 56600 538763 1077526 2155052 2693815 4310104 5387630 10775260 13469075 21550520 26938150 53876300 107752600 152469929 304939858 609879716 762349645 1219759432 1524699290 3049398580 3811748225 6098797160 7623496450 15246992900 30493985800