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78716048238 = 2331457704597
BaseRepresentation
bin100100101001111010…
…1111001001101101110
321112011212010120022000
41021103311321031232
52242202302020423
6100054530033130
75454441241002
oct1112365711556
9245155116260
1078716048238
1130424180123
1213309a187a6
137566128649
143b4a434702
1520aa8ed843
hex1253d7936e

78716048238 has 16 divisors (see below), whose sum is σ = 174924551760. Its totient is φ = 26238682728.

The previous prime is 78716048219. The next prime is 78716048249. The reversal of 78716048238 is 83284061787.

It is a happy number.

78716048238 is a `hidden beast` number, since 7 + 8 + 7 + 1 + 604 + 8 + 23 + 8 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1457704597 = 78716048238 / (7 + 8 + 7 + 1 + 6 + 0 + 4 + 8 + 2 + 3 + 8).

It is a Curzon number.

It is a congruent number.

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, 728852245 + ... + 728852352.

It is an arithmetic number, because the mean of its divisors is an integer number (10932784485).

Almost surely, 278716048238 is an apocalyptic number.

78716048238 is an abundant number, since it is smaller than the sum of its proper divisors (96208503522).

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

78716048238 is a wasteful number, since it uses less digits than its factorization.

78716048238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457704608 (or 1457704602 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 78716048238 in words is "seventy-eight billion, seven hundred sixteen million, forty-eight thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 54 1457704597 2915409194 4373113791 8746227582 13119341373 26238682746 39358024119 78716048238