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18485132 = 224621283
BaseRepresentation
bin100011010000…
…0111110001100
31021210010211112
41012200332030
514213011012
61500111152
7313056341
oct106407614
937703745
1018485132
11a486176
1262354b8
133aa2a63
1426527c8
151952122
hex11a0f8c

18485132 has 6 divisors (see below), whose sum is σ = 32348988. Its totient is φ = 9242564.

The previous prime is 18485111. The next prime is 18485143. The reversal of 18485132 is 23158481.

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 as a sum of consecutive naturals, namely, 2310638 + ... + 2310645.

It is an arithmetic number, because the mean of its divisors is an integer number (5391498).

Almost surely, 218485132 is an apocalyptic number.

It is an amenable number.

18485132 is a deficient number, since it is larger than the sum of its proper divisors (13863856).

18485132 is a wasteful number, since it uses less digits than its factorization.

18485132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621287 (or 4621285 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 18485132 is about 4299.4339162266. The cubic root of 18485132 is about 264.4077529668.

The spelling of 18485132 in words is "eighteen million, four hundred eighty-five thousand, one hundred thirty-two".

Divisors: 1 2 4 4621283 9242566 18485132