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78200930304 = 2153572361
BaseRepresentation
bin100100011010100100…
…0111000000000000000
321110211221211212100000
41020311020320000000
52240123414232204
655531445200000
75435614640310
oct1106510700000
9243757755300
1078200930304
113018a428422
12131a5400000
1374b34ac333
143adbc65440
15207a59b039
hex1235238000

78200930304 has 768 divisors, whose sum is σ = 283966824960. Its totient is φ = 21021327360.

The previous prime is 78200930279. The next prime is 78200930321. The reversal of 78200930304 is 40303900287.

It is a tau number, because it is divible by the number of its divisors (768).

It is a super-2 number, since 2×782009303042 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1281982434 + ... + 1281982494.

It is an arithmetic number, because the mean of its divisors is an integer number (369748470).

Almost surely, 278200930304 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 78200930304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141983412480).

78200930304 is an abundant number, since it is smaller than the sum of its proper divisors (205765894656).

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

78200930304 is an frugal number, since it uses more digits than its factorization.

78200930304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 78200930304 in words is "seventy-eight billion, two hundred million, nine hundred thirty thousand, three hundred four".