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49968902140 = 2252498445107
BaseRepresentation
bin101110100010011000…
…001110111111111100
311202222102022020101021
4232202120032333330
51304314014332030
634542210553524
73416163442303
oct564230167774
9152872266337
1049968902140
111a212162843
1298265988a4
1349344a2121
1425c055743a
151476ca097a
hexba260effc

49968902140 has 12 divisors (see below), whose sum is σ = 104934694536. Its totient is φ = 19987560848.

The previous prime is 49968902117. The next prime is 49968902143. The reversal of 49968902140 is 4120986994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49968902143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1249222534 + ... + 1249222573.

It is an arithmetic number, because the mean of its divisors is an integer number (8744557878).

Almost surely, 249968902140 is an apocalyptic number.

It is an amenable number.

49968902140 is an abundant number, since it is smaller than the sum of its proper divisors (54965792396).

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

49968902140 is a wasteful number, since it uses less digits than its factorization.

49968902140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498445116 (or 2498445114 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 49968902140 in words is "forty-nine billion, nine hundred sixty-eight million, nine hundred two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2498445107 4996890214 9993780428 12492225535 24984451070 49968902140