Search a number
-
+
187080013 = 677693631
BaseRepresentation
bin10110010011010…
…01110101001101
3111001000122112101
423021221311031
5340343030023
630321435101
74431103531
oct1311516515
9431018471
10187080013
1196668a8a
125279ba91
132c9b2643
141abbbbc1
15116561ad
hexb269d4d

187080013 has 8 divisors (see below), whose sum is σ = 190171520. Its totient is φ = 183997440.

The previous prime is 187080001. The next prime is 187080031. The reversal of 187080013 is 310080781.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-187080013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187080043) 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, 49708 + ... + 53338.

It is an arithmetic number, because the mean of its divisors is an integer number (23771440).

Almost surely, 2187080013 is an apocalyptic number.

It is an amenable number.

187080013 is a deficient number, since it is larger than the sum of its proper divisors (3091507).

187080013 is an equidigital number, since it uses as much as digits as its factorization.

187080013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 187080013 is about 13677.7195833224. The cubic root of 187080013 is about 571.9294550472.

The spelling of 187080013 in words is "one hundred eighty-seven million, eighty thousand, thirteen".

Divisors: 1 67 769 3631 51523 243277 2792239 187080013