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18067996 = 229746567
BaseRepresentation
bin100010011101…
…1001000011100
31020222221122001
41010323020130
514111133441
61443132044
7306401242
oct104731034
936887561
1018067996
11a220831
126074024
133987c2b
142584792
1518bd731
hex113b21c

18067996 has 12 divisors (see below), whose sum is σ = 31945648. Its totient is φ = 8940672.

The previous prime is 18067981. The next prime is 18067997. The reversal of 18067996 is 69976081.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18067997) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22896 + ... + 23671.

Almost surely, 218067996 is an apocalyptic number.

It is an amenable number.

18067996 is a deficient number, since it is larger than the sum of its proper divisors (13877652).

18067996 is a wasteful number, since it uses less digits than its factorization.

18067996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46668 (or 46666 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 18067996 is about 4250.6465390573. The cubic root of 18067996 is about 262.4037246336.

The spelling of 18067996 in words is "eighteen million, sixty-seven thousand, nine hundred ninety-six".

Divisors: 1 2 4 97 194 388 46567 93134 186268 4516999 9033998 18067996