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18828086 = 227913373
BaseRepresentation
bin100011111010…
…0101100110110
31022102120021112
41013310230312
514304444321
61511315022
7316015244
oct107645466
938376245
1018828086
11a69a902
12637ba72
133b92ba4
142701794
1519bda5b
hex11f4b36

18828086 has 8 divisors (see below), whose sum is σ = 28260624. Its totient is φ = 9407880.

The previous prime is 18828049. The next prime is 18828097. The reversal of 18828086 is 68082881.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3896 + ... + 7268.

It is an arithmetic number, because the mean of its divisors is an integer number (3532578).

Almost surely, 218828086 is an apocalyptic number.

18828086 is a deficient number, since it is larger than the sum of its proper divisors (9432538).

18828086 is a wasteful number, since it uses less digits than its factorization.

18828086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6166.

The product of its (nonzero) digits is 49152, while the sum is 41.

The square root of 18828086 is about 4339.1342454457. The cubic root of 18828086 is about 266.0329259937.

The spelling of 18828086 in words is "eighteen million, eight hundred twenty-eight thousand, eighty-six".

Divisors: 1 2 2791 3373 5582 6746 9414043 18828086