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18942092 = 2213364271
BaseRepresentation
bin100100001000…
…0100010001100
31022122100122222
41020100202030
514322121332
61513554512
7320001521
oct110204214
938570588
1018942092
11a768524
126415a38
133c02a50
142731148
1519e2712
hex121088c

18942092 has 12 divisors (see below), whose sum is σ = 35698656. Its totient is φ = 8742480.

The previous prime is 18942089. The next prime is 18942101. The reversal of 18942092 is 29024981.

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, 182084 + ... + 182187.

It is an arithmetic number, because the mean of its divisors is an integer number (2974888).

Almost surely, 218942092 is an apocalyptic number.

It is an amenable number.

18942092 is a deficient number, since it is larger than the sum of its proper divisors (16756564).

18942092 is a wasteful number, since it uses less digits than its factorization.

18942092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364288 (or 364286 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 18942092 is about 4352.2513714169. The cubic root of 18942092 is about 266.5687981137.

The spelling of 18942092 in words is "eighteen million, nine hundred forty-two thousand, ninety-two".

Divisors: 1 2 4 13 26 52 364271 728542 1457084 4735523 9471046 18942092