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18613070 = 2572953173
BaseRepresentation
bin100011100000…
…0001101001110
31022000122022222
41013000031032
514231104240
61502535342
7314131340
oct107001516
938018288
1018613070
11a563303
126297552
133b19068
142687290
151979eb5
hex11c034e

18613070 has 64 divisors (see below), whose sum is σ = 40590720. Its totient is φ = 6010368.

The previous prime is 18613061. The next prime is 18613087. The reversal of 18613070 is 7031681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107504 + ... + 107676.

It is an arithmetic number, because the mean of its divisors is an integer number (634230).

Almost surely, 218613070 is an apocalyptic number.

18613070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18613070 is an abundant number, since it is smaller than the sum of its proper divisors (21977650).

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

18613070 is a wasteful number, since it uses less digits than its factorization.

18613070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 18613070 is about 4314.2867313149. The cubic root of 18613070 is about 265.0163511923.

The spelling of 18613070 in words is "eighteen million, six hundred thirteen thousand, seventy".

Divisors: 1 2 5 7 10 14 29 35 53 58 70 106 145 173 203 265 290 346 371 406 530 742 865 1015 1211 1537 1730 1855 2030 2422 3074 3710 5017 6055 7685 9169 10034 10759 12110 15370 18338 21518 25085 35119 45845 50170 53795 64183 70238 91690 107590 128366 175595 265901 320915 351190 531802 641830 1329505 1861307 2659010 3722614 9306535 18613070