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78512425130 = 2559133071907
BaseRepresentation
bin100100100011110110…
…1001000100010101010
321111122122222102220102
41021013231020202222
52241243140101010
6100022413425402
75446416413426
oct1110755104252
9244578872812
1078512425130
113032a243067
121327179b262
137532ba31b9
143b2b38bb86
152097acaba5
hex1247b488aa

78512425130 has 16 divisors (see below), whose sum is σ = 143717660640. Its totient is φ = 30872682192.

The previous prime is 78512425111. The next prime is 78512425153. The reversal of 78512425130 is 3152421587.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66535364 + ... + 66536543.

It is an arithmetic number, because the mean of its divisors is an integer number (8982353790).

Almost surely, 278512425130 is an apocalyptic number.

78512425130 is a deficient number, since it is larger than the sum of its proper divisors (65205235510).

78512425130 is a wasteful number, since it uses less digits than its factorization.

78512425130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133071973.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 78512425130 in words is "seventy-eight billion, five hundred twelve million, four hundred twenty-five thousand, one hundred thirty".

Divisors: 1 2 5 10 59 118 295 590 133071907 266143814 665359535 1330719070 7851242513 15702485026 39256212565 78512425130