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18799316 = 2219723857
BaseRepresentation
bin100011110110…
…1101011010100
31022101002210222
41013231223110
514303034231
61510533512
7315535334
oct107555324
938332728
1018799316
11a680228
126367298
133b82a73
1426d50c4
1519b527b
hex11edad4

18799316 has 12 divisors (see below), whose sum is σ = 33067188. Its totient is φ = 9351552.

The previous prime is 18799271. The next prime is 18799327. The reversal of 18799316 is 61399781.

It can be written as a sum of positive squares in 2 ways, for example, as 10214416 + 8584900 = 3196^2 + 2930^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 11141 + ... + 12716.

It is an arithmetic number, because the mean of its divisors is an integer number (2755599).

Almost surely, 218799316 is an apocalyptic number.

It is an amenable number.

18799316 is a deficient number, since it is larger than the sum of its proper divisors (14267872).

18799316 is a wasteful number, since it uses less digits than its factorization.

18799316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24058 (or 24056 counting only the distinct ones).

The product of its digits is 81648, while the sum is 44.

The square root of 18799316 is about 4335.8178006000. The cubic root of 18799316 is about 265.8973542561.

The spelling of 18799316 in words is "eighteen million, seven hundred ninety-nine thousand, three hundred sixteen".

Divisors: 1 2 4 197 394 788 23857 47714 95428 4699829 9399658 18799316