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18368475374 = 210301891587
BaseRepresentation
bin10001000110110110…
…001011000011101110
31202102010112020012202
4101012312023003232
5300104312202444
612234404101502
71220121315224
oct210666130356
952363466182
1018368475374
117876586467
123687694892
131969684c52
14c63746b14
157278e134e
hex446d8b0ee

18368475374 has 8 divisors (see below), whose sum is σ = 27555418728. Its totient is φ = 9183335800.

The previous prime is 18368475347. The next prime is 18368475409. The reversal of 18368475374 is 47357486381.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425192 + ... + 466395.

It is an arithmetic number, because the mean of its divisors is an integer number (3444427341).

Almost surely, 218368475374 is an apocalyptic number.

18368475374 is a deficient number, since it is larger than the sum of its proper divisors (9186943354).

18368475374 is a wasteful number, since it uses less digits than its factorization.

18368475374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901890.

The product of its digits is 13547520, while the sum is 56.

The spelling of 18368475374 in words is "eighteen billion, three hundred sixty-eight million, four hundred seventy-five thousand, three hundred seventy-four".

Divisors: 1 2 10301 20602 891587 1783174 9184237687 18368475374