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14278090 = 251427809
BaseRepresentation
bin110110011101…
…110111001010
3222212101212011
4312131313022
512123344330
61230010134
7232235041
oct66356712
928771764
1014278090
118072382
12494694a
132c5bb98
141c79558
1513c082a
hexd9ddca

14278090 has 8 divisors (see below), whose sum is σ = 25700580. Its totient is φ = 5711232.

The previous prime is 14278057. The next prime is 14278091. The reversal of 14278090 is 9087241.

It can be written as a sum of positive squares in 2 ways, for example, as 13039321 + 1238769 = 3611^2 + 1113^2 .

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

It is not an unprimeable number, because it can be changed into a prime (14278091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713895 + ... + 713914.

Almost surely, 214278090 is an apocalyptic number.

14278090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14278090 is a deficient number, since it is larger than the sum of its proper divisors (11422490).

14278090 is a wasteful number, since it uses less digits than its factorization.

14278090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427816.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 14278090 is about 3778.6359972879. The cubic root of 14278090 is about 242.5995764934.

The spelling of 14278090 in words is "fourteen million, two hundred seventy-eight thousand, ninety".

Divisors: 1 2 5 10 1427809 2855618 7139045 14278090