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18893152 = 252920359
BaseRepresentation
bin100100000010…
…0100101100000
31022112212112101
41020010211200
514314040102
61512540144
7316406035
oct110044540
938485471
1018893152
11a734783
1263b1654
133bb66a5
14271b38c
1519d2e87
hex1204960

18893152 has 24 divisors (see below), whose sum is σ = 38480400. Its totient is φ = 9120384.

The previous prime is 18893141. The next prime is 18893179. The reversal of 18893152 is 25139881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9252 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (1603350).

Almost surely, 218893152 is an apocalyptic number.

It is an amenable number.

18893152 is an abundant number, since it is smaller than the sum of its proper divisors (19587248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18893152 is a wasteful number, since it uses less digits than its factorization.

18893152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20398 (or 20390 counting only the distinct ones).

The product of its digits is 17280, while the sum is 37.

The square root of 18893152 is about 4346.6253576769. The cubic root of 18893152 is about 266.3390253846.

It can be divided in two parts, 1889 and 3152, that added together give a square (5041 = 712).

The spelling of 18893152 in words is "eighteen million, eight hundred ninety-three thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 29 32 58 116 232 464 928 20359 40718 81436 162872 325744 590411 651488 1180822 2361644 4723288 9446576 18893152