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18094872 = 2331096917
BaseRepresentation
bin100010100000…
…1101100011000
31021001022111110
41011001230120
514113013442
61443500320
7306542505
oct105015430
937038443
1018094872
11a239a44
1260876a0
133997233
1425904ac
1518c669c
hex1141b18

18094872 has 32 divisors (see below), whose sum is σ = 45658800. Its totient is φ = 5975424.

The previous prime is 18094861. The next prime is 18094883. The reversal of 18094872 is 27849081.

It is an interprime number because it is at equal distance from previous prime (18094861) and next prime (18094883).

It is a self number, because there is not a number n which added to its sum of digits gives 18094872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843 + ... + 6074.

Almost surely, 218094872 is an apocalyptic number.

18094872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18094872 is an abundant number, since it is smaller than the sum of its proper divisors (27563928).

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

18094872 is a wasteful number, since it uses less digits than its factorization.

18094872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7035 (or 7031 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 18094872 is about 4253.8067657100. The cubic root of 18094872 is about 262.5337679915.

The spelling of 18094872 in words is "eighteen million, ninety-four thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 109 218 327 436 654 872 1308 2616 6917 13834 20751 27668 41502 55336 83004 166008 753953 1507906 2261859 3015812 4523718 6031624 9047436 18094872