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30839615800 = 2352722028297
BaseRepresentation
bin11100101110001011…
…110011000100111000
32221121021011210201121
4130232023303010320
51001124420201200
622100103555024
72141143260220
oct345613630470
987537153647
1030839615800
1112096182894
125b8815ba74
132ba6308996
1416c7b67080
15c076c8e1a
hex72e2f3138

30839615800 has 48 divisors (see below), whose sum is σ = 81945268560. Its totient is φ = 10573582080.

The previous prime is 30839615797. The next prime is 30839615801. The reversal of 30839615800 is 851693803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30839615801) 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, 11012749 + ... + 11015548.

It is an arithmetic number, because the mean of its divisors is an integer number (1707193095).

Almost surely, 230839615800 is an apocalyptic number.

It is an amenable number.

30839615800 is an abundant number, since it is smaller than the sum of its proper divisors (51105652760).

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

30839615800 is a wasteful number, since it uses less digits than its factorization.

30839615800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22028320 (or 22028311 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 30839615800 in words is "thirty billion, eight hundred thirty-nine million, six hundred fifteen thousand, eight hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 700 1400 22028297 44056594 88113188 110141485 154198079 176226376 220282970 308396158 440565940 550707425 616792316 770990395 881131880 1101414850 1233584632 1541980790 2202829700 3083961580 3854951975 4405659400 6167923160 7709903950 15419807900 30839615800