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14990890 = 2514910061
BaseRepresentation
bin111001001011…
…111000101010
31001012121122011
4321023320222
512314202030
61253150134
7241264135
oct71137052
931177564
1014990890
118509972
12502b34a
13314b465
141dc321c
1514b1b2a
hexe4be2a

14990890 has 16 divisors (see below), whose sum is σ = 27167400. Its totient is φ = 5955520.

The previous prime is 14990881. The next prime is 14990903. The reversal of 14990890 is 9809941.

It can be written as a sum of positive squares in 4 ways, for example, as 9566649 + 5424241 = 3093^2 + 2329^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3541 + ... + 6520.

Almost surely, 214990890 is an apocalyptic number.

14990890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14990890 is a deficient number, since it is larger than the sum of its proper divisors (12176510).

14990890 is a wasteful number, since it uses less digits than its factorization.

14990890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10217.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 14990890 is about 3871.8070716398. The cubic root of 14990890 is about 246.5712702288.

The spelling of 14990890 in words is "fourteen million, nine hundred ninety thousand, eight hundred ninety".

Divisors: 1 2 5 10 149 298 745 1490 10061 20122 50305 100610 1499089 2998178 7495445 14990890