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38513145800 = 2352238372423
BaseRepresentation
bin100011110111100011…
…111111011111001000
310200102001021111222102
4203313203333133020
51112333331131200
625405342212532
72532251223623
oct436743773710
9120361244872
1038513145800
1115373737518
127569b84148
13382a01398c
141c14d2adba
1510061d76d5
hex8f78ff7c8

38513145800 has 48 divisors (see below), whose sum is σ = 93436251840. Its totient is φ = 14735462720.

The previous prime is 38513145767. The next prime is 38513145809. The reversal of 38513145800 is 854131583.

It is not an unprimeable number, because it can be changed into a prime (38513145809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4181612 + ... + 4190811.

It is an arithmetic number, because the mean of its divisors is an integer number (1946588580).

Almost surely, 238513145800 is an apocalyptic number.

It is an amenable number.

38513145800 is an abundant number, since it is smaller than the sum of its proper divisors (54923106040).

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

38513145800 is a wasteful number, since it uses less digits than its factorization.

38513145800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372462 (or 8372453 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 38513145800 in words is "thirty-eight billion, five hundred thirteen million, one hundred forty-five thousand, eight hundred".

Divisors: 1 2 4 5 8 10 20 23 25 40 46 50 92 100 115 184 200 230 460 575 920 1150 2300 4600 8372423 16744846 33489692 41862115 66979384 83724230 167448460 192565729 209310575 334896920 385131458 418621150 770262916 837242300 962828645 1540525832 1674484600 1925657290 3851314580 4814143225 7702629160 9628286450 19256572900 38513145800