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53940791814 = 23721323837393
BaseRepresentation
bin110010001111000111…
…110010101000000110
312011020020010010201020
4302033013302220012
51340432320314224
640440254212010
73616463110500
oct621707625006
9164206103636
1053940791814
1120970197298
12a5547b4006
1351183309c0
142879c70d70
15160a821c79
hexc8f1f2a06

53940791814 has 192 divisors, whose sum is σ = 142742767104. Its totient is φ = 13441849344.

The previous prime is 53940791783. The next prime is 53940791819. The reversal of 53940791814 is 41819704935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53940791819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7292502 + ... + 7299894.

It is an arithmetic number, because the mean of its divisors is an integer number (743451912).

Almost surely, 253940791814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53940791814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71371383552).

53940791814 is an abundant number, since it is smaller than the sum of its proper divisors (88801975290).

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

53940791814 is a wasteful number, since it uses less digits than its factorization.

53940791814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531 (or 7524 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 53940791814 in words is "fifty-three billion, nine hundred forty million, seven hundred ninety-one thousand, eight hundred fourteen".