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115407000193 = 937123166489
BaseRepresentation
bin110101101111011001…
…0110001001010000001
3102000212220122001020111
41223132302301022001
53342323143001233
6125003420311321
711223615213262
oct1533662611201
9360786561214
10115407000193
1144a42274411
121a4496a2541
13ab6277b3c4
14582b34c969
153006b46acd
hex1adecb1281

115407000193 has 4 divisors (see below), whose sum is σ = 115530167620. Its totient is φ = 115283832768.

The previous prime is 115407000143. The next prime is 115407000223. The reversal of 115407000193 is 391000704511.

It is the 138689-th star number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49700905969 + 65706094224 = 222937^2 + 256332^2 .

It is a cyclic number.

It is not a de Polignac number, because 115407000193 - 217 = 115406869121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115407000143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61582308 + ... + 61584181.

It is an arithmetic number, because the mean of its divisors is an integer number (28882541905).

Almost surely, 2115407000193 is an apocalyptic number.

It is an amenable number.

115407000193 is a deficient number, since it is larger than the sum of its proper divisors (123167427).

115407000193 is an equidigital number, since it uses as much as digits as its factorization.

115407000193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123167426.

The product of its (nonzero) digits is 3780, while the sum is 31.

The spelling of 115407000193 in words is "one hundred fifteen billion, four hundred seven million, one hundred ninety-three", and thus it is an aban number.

Divisors: 1 937 123166489 115407000193