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28060978176 = 210337311269
BaseRepresentation
bin11010001000100100…
…001000110000000000
32200102121200101111000
4122020210020300000
5424432102300201
620520244052000
72012243244000
oct321044106000
980377611430
1028060978176
111099a766260
125531694000
13285274acca
141502b04000
15ae37add86
hex688908c00

28060978176 has 704 divisors, whose sum is σ = 106116480000. Its totient is φ = 7261470720.

The previous prime is 28060978163. The next prime is 28060978181. The reversal of 28060978176 is 67187906082.

28060978176 is a `hidden beast` number, since 28 + 0 + 609 + 7 + 8 + 1 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (704).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104315770 + ... + 104316038.

Almost surely, 228060978176 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28060978176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53058240000).

28060978176 is an abundant number, since it is smaller than the sum of its proper divisors (78055501824).

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

28060978176 is a wasteful number, since it uses less digits than its factorization.

28060978176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 28060978176 in words is "twenty-eight billion, sixty million, nine hundred seventy-eight thousand, one hundred seventy-six".