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18274059 = 334571481
BaseRepresentation
bin100010110110…
…1011100001011
31021101102022000
41011231130023
514134232214
61451402043
7311220066
oct105553413
937342260
1018274059
11a351631
126153323
133a2a96b
1425d98dd
15190e809
hex116d70b

18274059 has 16 divisors (see below), whose sum is σ = 27150240. Its totient is φ = 12147840.

The previous prime is 18274037. The next prime is 18274063. The reversal of 18274059 is 95047281.

It is not a de Polignac number, because 18274059 - 28 = 18273803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18274759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11599 + ... + 13079.

It is an arithmetic number, because the mean of its divisors is an integer number (1696890).

Almost surely, 218274059 is an apocalyptic number.

18274059 is a deficient number, since it is larger than the sum of its proper divisors (8876181).

18274059 is a wasteful number, since it uses less digits than its factorization.

18274059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947 (or 1941 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 18274059 is about 4274.8168381815. The cubic root of 18274059 is about 263.3975155561.

It can be divided in two parts, 1827 and 4059, that added together give a triangular number (5886 = T108).

The spelling of 18274059 in words is "eighteen million, two hundred seventy-four thousand, fifty-nine".

Divisors: 1 3 9 27 457 1371 1481 4113 4443 12339 13329 39987 676817 2030451 6091353 18274059