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50875390494 = 2331889498749
BaseRepresentation
bin101111011000011010…
…001101101000011110
311212022121000121122000
4233120122031220132
51313143044443434
635212152103130
73450511453425
oct573032155036
9155277017560
1050875390494
111a637916975
129a3a094aa6
134a4a22ab76
142668ac22bc
1514cb65eb99
hexbd868da1e

50875390494 has 32 divisors (see below), whose sum is σ = 113116500000. Its totient is φ = 16949452032.

The previous prime is 50875390483. The next prime is 50875390507. The reversal of 50875390494 is 49409357805.

50875390494 is a `hidden beast` number, since 50 + 8 + 75 + 39 + 0 + 494 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 50875390494.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147369 + ... + 351380.

It is an arithmetic number, because the mean of its divisors is an integer number (3534890625).

Almost surely, 250875390494 is an apocalyptic number.

50875390494 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

50875390494 is an abundant number, since it is smaller than the sum of its proper divisors (62241109506).

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

50875390494 is a wasteful number, since it uses less digits than its factorization.

50875390494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500649 (or 500643 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 50875390494 in words is "fifty billion, eight hundred seventy-five million, three hundred ninety thousand, four hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 54 1889 3778 5667 11334 17001 34002 51003 102006 498749 997498 1496247 2992494 4488741 8977482 13466223 26932446 942136861 1884273722 2826410583 5652821166 8479231749 16958463498 25437695247 50875390494