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115745479680 = 21035234161131
BaseRepresentation
bin110101111001011110…
…1111101110000000000
3102001202111112120210210
41223302331331300000
53344021320322210
6125101151154120
711235165226035
oct1536275756000
9361674476723
10115745479680
11450a6340026
121a522b15940
13abb792c91c
14586029b38c
153026706e20
hex1af2f7dc00

115745479680 has 704 divisors, whose sum is σ = 405280060416. Its totient is φ = 28114944000.

The previous prime is 115745479679. The next prime is 115745479699. The reversal of 115745479680 is 86974547511.

It is a self number, because there is not a number n which added to its sum of digits gives 115745479680.

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, 883553215 + ... + 883553345.

It is an arithmetic number, because the mean of its divisors is an integer number (575681904).

Almost surely, 2115745479680 is an apocalyptic number.

115745479680 is a gapful number since it is divisible by the number (10) 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 115745479680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202640030208).

115745479680 is an abundant number, since it is smaller than the sum of its proper divisors (289534580736).

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

115745479680 is a wasteful number, since it uses less digits than its factorization.

115745479680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 57.

The spelling of 115745479680 in words is "one hundred fifteen billion, seven hundred forty-five million, four hundred seventy-nine thousand, six hundred eighty".