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14307890 = 251430789
BaseRepresentation
bin110110100101…
…001000110010
3222220220201212
4312211020302
512130323030
61230400122
7232420652
oct66451062
928826655
1014307890
118092803
124960042
132c6c60c
141c86362
1513c9595
hexda5232

14307890 has 8 divisors (see below), whose sum is σ = 25754220. Its totient is φ = 5723152.

The previous prime is 14307889. The next prime is 14307899. The reversal of 14307890 is 9870341.

It can be written as a sum of positive squares in 2 ways, for example, as 14235529 + 72361 = 3773^2 + 269^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (14307899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715385 + ... + 715404.

Almost surely, 214307890 is an apocalyptic number.

14307890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14307890 is a deficient number, since it is larger than the sum of its proper divisors (11446330).

14307890 is a wasteful number, since it uses less digits than its factorization.

14307890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430796.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 14307890 is about 3782.5771637866. The cubic root of 14307890 is about 242.7682368588.

The spelling of 14307890 in words is "fourteen million, three hundred seven thousand, eight hundred ninety".

Divisors: 1 2 5 10 1430789 2861578 7153945 14307890