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18953058 = 2323137341
BaseRepresentation
bin100100001001…
…1001101100010
31022122220201010
41020103031202
514322444213
61514121350
7320045505
oct110231542
938586633
1018953058
11a775793
126420256
133c07a37
14273513c
1519e5ac3
hex1213362

18953058 has 16 divisors (see below), whose sum is σ = 39554496. Its totient is φ = 6042960.

The previous prime is 18953047. The next prime is 18953083. The reversal of 18953058 is 85035981.

It is a super-3 number, since 3×189530583 (a number of 23 digits) contains 333 as substring.

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, 68533 + ... + 68808.

It is an arithmetic number, because the mean of its divisors is an integer number (2472156).

Almost surely, 218953058 is an apocalyptic number.

18953058 is an abundant number, since it is smaller than the sum of its proper divisors (20601438).

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

18953058 is a wasteful number, since it uses less digits than its factorization.

18953058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137369.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 18953058 is about 4353.5109968852. The cubic root of 18953058 is about 266.6202290666.

The spelling of 18953058 in words is "eighteen million, nine hundred fifty-three thousand, fifty-eight".

Divisors: 1 2 3 6 23 46 69 138 137341 274682 412023 824046 3158843 6317686 9476529 18953058