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18966083 = 791012377
BaseRepresentation
bin100100001011…
…0011001000011
31022200120120112
41020112121003
514323403313
61514301535
7320131463
oct110263103
938616515
1018966083
11a784554
1264278ab
133c10946
142739ba3
1519e98a8
hex1216643

18966083 has 8 divisors (see below), whose sum is σ = 19404480. Its totient is φ = 18532800.

The previous prime is 18966043. The next prime is 18966113. The reversal of 18966083 is 38066981.

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 not a de Polignac number, because 18966083 - 26 = 18966019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18966083.

It is not an unprimeable number, because it can be changed into a prime (18966043) 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, 6791 + ... + 9167.

It is an arithmetic number, because the mean of its divisors is an integer number (2425560).

Almost surely, 218966083 is an apocalyptic number.

18966083 is a deficient number, since it is larger than the sum of its proper divisors (438397).

18966083 is a wasteful number, since it uses less digits than its factorization.

18966083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 18966083 is about 4355.0066590075. The cubic root of 18966083 is about 266.6812910382.

The spelling of 18966083 in words is "eighteen million, nine hundred sixty-six thousand, eighty-three".

Divisors: 1 79 101 2377 7979 187783 240077 18966083