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14886890 = 257320393
BaseRepresentation
bin111000110010…
…011111101010
31001000022222022
4320302133222
512302340030
61251024442
7240352004
oct70623752
931008868
1014886890
118448817
124b9b122
133113015
141d97374
151490de5
hexe327ea

14886890 has 16 divisors (see below), whose sum is σ = 27164808. Its totient is φ = 5872896.

The previous prime is 14886871. The next prime is 14886919. The reversal of 14886890 is 9868841.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12524521 + 2362369 = 3539^2 + 1537^2 .

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, 9467 + ... + 10926.

Almost surely, 214886890 is an apocalyptic number.

14886890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14886890 is a deficient number, since it is larger than the sum of its proper divisors (12277918).

14886890 is a wasteful number, since it uses less digits than its factorization.

14886890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20473.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 14886890 is about 3858.3532756864. The cubic root of 14886890 is about 245.9997466232. Note that the first 3 decimals are identical.

The spelling of 14886890 in words is "fourteen million, eight hundred eighty-six thousand, eight hundred ninety".

Divisors: 1 2 5 10 73 146 365 730 20393 40786 101965 203930 1488689 2977378 7443445 14886890