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18358054 = 2111364189
BaseRepresentation
bin100011000000…
…1111100100110
31021112200111221
41012001330212
514144424204
61453250554
7312020011
oct106017446
937480457
1018358054
11a3a9750
126193a5a
133a59c70
14261c378
151929654
hex1181f26

18358054 has 16 divisors (see below), whose sum is σ = 32351760. Its totient is φ = 7702560.

The previous prime is 18358049. The next prime is 18358069. The reversal of 18358054 is 45085381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31809 + ... + 32380.

It is an arithmetic number, because the mean of its divisors is an integer number (2021985).

Almost surely, 218358054 is an apocalyptic number.

18358054 is a deficient number, since it is larger than the sum of its proper divisors (13993706).

18358054 is a wasteful number, since it uses less digits than its factorization.

18358054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64215.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 18358054 is about 4284.6299723547. The cubic root of 18358054 is about 263.8004594876.

It can be divided in two parts, 1835 and 8054, that added together give a palindrome (9889).

The spelling of 18358054 in words is "eighteen million, three hundred fifty-eight thousand, fifty-four".

Divisors: 1 2 11 13 22 26 143 286 64189 128378 706079 834457 1412158 1668914 9179027 18358054