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50852981439 = 3313236299143
BaseRepresentation
bin101111010111000100…
…101110101010111111
311212021000212010012000
4233113010232222333
51313121330401224
635210031513343
73450120132051
oct572704565277
9155230763160
1050852981439
111a626200697
129a32688853
134a456b3080
142665b2b8d1
1514c96d50c9
hexbd712eabf

50852981439 has 32 divisors (see below), whose sum is σ = 84660495360. Its totient is φ = 29933522784.

The previous prime is 50852981437. The next prime is 50852981489. The reversal of 50852981439 is 93418925805.

50852981439 is a `hidden beast` number, since 5 + 0 + 8 + 529 + 81 + 4 + 39 = 666.

It is not a de Polignac number, because 50852981439 - 21 = 50852981437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50852981437) 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 31 ways as a sum of consecutive naturals, for example, 3141499 + ... + 3157644.

It is an arithmetic number, because the mean of its divisors is an integer number (2645640480).

Almost surely, 250852981439 is an apocalyptic number.

50852981439 is a deficient number, since it is larger than the sum of its proper divisors (33807513921).

50852981439 is a wasteful number, since it uses less digits than its factorization.

50852981439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6299188 (or 6299182 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 50852981439 in words is "fifty billion, eight hundred fifty-two million, nine hundred eighty-one thousand, four hundred thirty-nine".

Divisors: 1 3 9 13 23 27 39 69 117 207 299 351 621 897 2691 8073 6299143 18897429 56692287 81888859 144880289 170076861 245666577 434640867 736999731 1303922601 1883443757 2210999193 3911767803 5650331271 16950993813 50852981439