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18796999 = 133739079
BaseRepresentation
bin100011110110…
…1000111000111
31022100222122011
41013231013013
514303000444
61510515051
7315525514
oct107550707
938328564
1018796999
11a679511
126365a87
133b819b0
1426d430b
1519b4734
hex11ed1c7

18796999 has 8 divisors (see below), whose sum is σ = 20790560. Its totient is φ = 16881696.

The previous prime is 18796993. The next prime is 18797021. The reversal of 18796999 is 99969781.

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

It is a de Polignac number, because none of the positive numbers 2k-18796999 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 (18796993) 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, 19059 + ... + 20020.

It is an arithmetic number, because the mean of its divisors is an integer number (2598820).

Almost surely, 218796999 is an apocalyptic number.

18796999 is a deficient number, since it is larger than the sum of its proper divisors (1993561).

18796999 is a wasteful number, since it uses less digits than its factorization.

18796999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39129.

The product of its digits is 2204496, while the sum is 58.

The square root of 18796999 is about 4335.5505994049. The cubic root of 18796999 is about 265.8864299317.

The spelling of 18796999 in words is "eighteen million, seven hundred ninety-six thousand, nine hundred ninety-nine".

Divisors: 1 13 37 481 39079 508027 1445923 18796999