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78906610011 = 3145721180497
BaseRepresentation
bin100100101111100110…
…0110101000101011011
321112200010201002220110
41021133030311011123
52243100043010021
6100125454255403
75462244055455
oct1113714650533
9245603632813
1078906610011
11305117a6a99
12133617b7563
1375967599a8
143b6787b2d5
1520bc4e1476
hex125f33515b

78906610011 has 8 divisors (see below), whose sum is σ = 105210118224. Its totient is φ = 52603754240.

The previous prime is 78906610001. The next prime is 78906610019. The reversal of 78906610011 is 11001660987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78906610011 - 211 = 78906607963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78906610019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346915 + ... + 527411.

It is an arithmetic number, because the mean of its divisors is an integer number (13151264778).

Almost surely, 278906610011 is an apocalyptic number.

78906610011 is a deficient number, since it is larger than the sum of its proper divisors (26303508213).

78906610011 is a wasteful number, since it uses less digits than its factorization.

78906610011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326221.

The product of its (nonzero) digits is 18144, while the sum is 39.

The spelling of 78906610011 in words is "seventy-eight billion, nine hundred six million, six hundred ten thousand, eleven".

Divisors: 1 3 145721 180497 437163 541491 26302203337 78906610011