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14789381 = 371972029
BaseRepresentation
bin111000011010…
…101100000101
31000211101012212
4320122230011
512241230011
61244553205
7236464505
oct70325405
930741185
1014789381
118391532
124b52805
1330aa819
141d6da05
15147208b
hexe1ab05

14789381 has 8 divisors (see below), whose sum is σ = 15273720. Its totient is φ = 14309568.

The previous prime is 14789363. The next prime is 14789399. The reversal of 14789381 is 18398741.

It is an interprime number because it is at equal distance from previous prime (14789363) and next prime (14789399).

It can be written as a sum of positive squares in 4 ways, for example, as 13653025 + 1136356 = 3695^2 + 1066^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14789381 is a prime.

It is a super-2 number, since 2×147893812 = 437451580726322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14783381) 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 7 ways as a sum of consecutive naturals, for example, 6275 + ... + 8303.

It is an arithmetic number, because the mean of its divisors is an integer number (1909215).

Almost surely, 214789381 is an apocalyptic number.

It is an amenable number.

14789381 is a deficient number, since it is larger than the sum of its proper divisors (484339).

14789381 is a wasteful number, since it uses less digits than its factorization.

14789381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263.

The product of its digits is 48384, while the sum is 41.

The square root of 14789381 is about 3845.6964258766. The cubic root of 14789381 is about 245.4614709398.

The spelling of 14789381 in words is "fourteen million, seven hundred eighty-nine thousand, three hundred eighty-one".

Divisors: 1 37 197 2029 7289 75073 399713 14789381