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78611016960 = 2832573726347
BaseRepresentation
bin100100100110110010…
…1001110110100000000
321111220112111102110200
41021031211032310000
52241443410020320
6100040254525200
75452024422240
oct1111545166400
9244815442420
1078611016960
113037a962613
121329a806800
13754a442a68
143b3a4d3b20
1520a15a3290
hex124d94ed00

78611016960 has 432 divisors, whose sum is σ = 319254289536. Its totient is φ = 17481940992.

The previous prime is 78611016959. The next prime is 78611016977. The reversal of 78611016960 is 6961011687.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2970507 + ... + 2996853.

Almost surely, 278611016960 is an apocalyptic number.

78611016960 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78611016960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159627144768).

78611016960 is an abundant number, since it is smaller than the sum of its proper divisors (240643272576).

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

78611016960 is a wasteful number, since it uses less digits than its factorization.

78611016960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26418 (or 26401 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 78611016960 in words is "seventy-eight billion, six hundred eleven million, sixteen thousand, nine hundred sixty".