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15680500460 = 2251746119119
BaseRepresentation
bin11101001101010000…
…10111001011101100
31111110210121221211022
432212220113023230
5224103202003320
611111543313312
71063402024532
oct164650271354
944423557738
1015680500460
116717263099
12305744b838
13162b81ba51
14a8a764152
1561b934325
hex3a6a172ec

15680500460 has 24 divisors (see below), whose sum is σ = 34866054720. Its totient is φ = 5903247104.

The previous prime is 15680500441. The next prime is 15680500489. The reversal of 15680500460 is 6400508651.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 15680500460.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23059220 + ... + 23059899.

It is an arithmetic number, because the mean of its divisors is an integer number (1452752280).

Almost surely, 215680500460 is an apocalyptic number.

15680500460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15680500460 is an abundant number, since it is smaller than the sum of its proper divisors (19185554260).

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

15680500460 is a wasteful number, since it uses less digits than its factorization.

15680500460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46119145 (or 46119143 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 15680500460 in words is "fifteen billion, six hundred eighty million, five hundred thousand, four hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 46119119 92238238 184476476 230595595 461191190 784025023 922382380 1568050046 3136100092 3920125115 7840250230 15680500460