Search a number
-
+
115387873 = 2812831451
BaseRepresentation
bin1101110000010…
…10110111100001
322001010022101221
412320022313201
5214014402443
615241055041
72600531536
oct670126741
9261108357
10115387873
115a151687
1232787481
131aba0863
1411478d8d
15a1e3eed
hex6e0ade1

115387873 has 8 divisors (see below), whose sum is σ = 116287776. Its totient is φ = 114492000.

The previous prime is 115387871. The next prime is 115387879. The reversal of 115387873 is 378783511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115387873 - 21 = 115387871 is a prime.

It is a super-2 number, since 2×1153878732 = 26628722470928258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115387871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78798 + ... + 80248.

It is an arithmetic number, because the mean of its divisors is an integer number (14535972).

Almost surely, 2115387873 is an apocalyptic number.

It is an amenable number.

115387873 is a deficient number, since it is larger than the sum of its proper divisors (899903).

115387873 is a wasteful number, since it uses less digits than its factorization.

115387873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015.

The product of its digits is 141120, while the sum is 43.

The square root of 115387873 is about 10741.8747432653. The cubic root of 115387873 is about 486.8405255996.

The spelling of 115387873 in words is "one hundred fifteen million, three hundred eighty-seven thousand, eight hundred seventy-three".

Divisors: 1 281 283 1451 79523 407731 410633 115387873