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18830299 = 313716417
BaseRepresentation
bin100011111010…
…1001111011011
31022102200022111
41013311033123
514310032144
61511333151
7316024555
oct107651733
938380274
1018830299
11a6a1534
1263811b7
133b93bb7
1427024d5
1519be534
hex11f53db

18830299 has 8 divisors (see below), whose sum is σ = 19964288. Its totient is φ = 17729280.

The previous prime is 18830297. The next prime is 18830321. The reversal of 18830299 is 99203881.

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 18830299 - 21 = 18830297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18830291) 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, 7062 + ... + 9355.

It is an arithmetic number, because the mean of its divisors is an integer number (2495536).

Almost surely, 218830299 is an apocalyptic number.

18830299 is a deficient number, since it is larger than the sum of its proper divisors (1133989).

18830299 is a wasteful number, since it uses less digits than its factorization.

18830299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16485.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 18830299 is about 4339.3892427391. The cubic root of 18830299 is about 266.0433485047.

The spelling of 18830299 in words is "eighteen million, eight hundred thirty thousand, two hundred ninety-nine".

Divisors: 1 31 37 1147 16417 508927 607429 18830299