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18950206 = 21117232203
BaseRepresentation
bin100100001001…
…0100000111110
31022122202210111
41020102200332
514322401311
61514100234
7320034262
oct110224076
938582714
1018950206
11a773630
12641a67a
133c06652
1427340a2
1519e4d21
hex121283e

18950206 has 32 divisors (see below), whose sum is σ = 34276608. Its totient is φ = 7751040.

The previous prime is 18950171. The next prime is 18950219. The reversal of 18950206 is 60205981.

It is a super-2 number, since 2×189502062 = 718220614884872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7501 + ... + 9703.

It is an arithmetic number, because the mean of its divisors is an integer number (1071144).

Almost surely, 218950206 is an apocalyptic number.

18950206 is a deficient number, since it is larger than the sum of its proper divisors (15326402).

18950206 is a wasteful number, since it uses less digits than its factorization.

18950206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 18950206 is about 4353.1834328454. The cubic root of 18950206 is about 266.6068549884.

The spelling of 18950206 in words is "eighteen million, nine hundred fifty thousand, two hundred six".

Divisors: 1 2 11 17 22 23 34 46 187 253 374 391 506 782 2203 4301 4406 8602 24233 37451 48466 50669 74902 101338 411961 557359 823922 861373 1114718 1722746 9475103 18950206