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14809690 = 257832549
BaseRepresentation
bin111000011111…
…101001011010
31000212102002001
4320133221122
512242402230
61245231214
7236610640
oct70375132
930772061
1014809690
1183a5815
124b6250a
1330b6b3c
141d77190
1514780ca
hexe1fa5a

14809690 has 32 divisors (see below), whose sum is σ = 30844800. Its totient is φ = 5014464.

The previous prime is 14809679. The next prime is 14809693. The reversal of 14809690 is 9690841.

It is a super-2 number, since 2×148096902 = 438653835792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14809693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4536 + ... + 7084.

It is an arithmetic number, because the mean of its divisors is an integer number (963900).

Almost surely, 214809690 is an apocalyptic number.

14809690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14809690 is an abundant number, since it is smaller than the sum of its proper divisors (16035110).

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

14809690 is a wasteful number, since it uses less digits than its factorization.

14809690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 14809690 is about 3848.3360040412. The cubic root of 14809690 is about 245.5737766744.

The spelling of 14809690 in words is "fourteen million, eight hundred nine thousand, six hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 83 166 415 581 830 1162 2549 2905 5098 5810 12745 17843 25490 35686 89215 178430 211567 423134 1057835 1480969 2115670 2961938 7404845 14809690