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18410772 = 2231980749
BaseRepresentation
bin100011000111…
…0110100010100
31021122100211110
41012032310110
514203121042
61454335020
7312326502
oct106166424
937570743
1018410772
11a435316
1261ba470
133a77c63
142633672
15193a09c
hex118ed14

18410772 has 24 divisors (see below), whose sum is σ = 45220000. Its totient is φ = 5813856.

The previous prime is 18410767. The next prime is 18410783. The reversal of 18410772 is 27701481.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 40147 + ... + 40602.

Almost surely, 218410772 is an apocalyptic number.

18410772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18410772 is an abundant number, since it is smaller than the sum of its proper divisors (26809228).

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

18410772 is a wasteful number, since it uses less digits than its factorization.

18410772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80775 (or 80773 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 18410772 is about 4290.7775519129. Note that the first 3 decimals coincide. The cubic root of 18410772 is about 264.0527328087.

The spelling of 18410772 in words is "eighteen million, four hundred ten thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 80749 161498 242247 322996 484494 968988 1534231 3068462 4602693 6136924 9205386 18410772