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14247445 = 517315407
BaseRepresentation
bin110110010110…
…011000010101
3222210211211011
4312112120111
512121404240
61225212221
7232046512
oct66263025
928724734
1014247445
118051353
124931071
132c4ac54
141c6c309
1513b66ea
hexd96615

14247445 has 16 divisors (see below), whose sum is σ = 18690048. Its totient is φ = 10379520.

The previous prime is 14247437. The next prime is 14247449. The reversal of 14247445 is 54474241.

14247445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14247445 - 23 = 14247437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14247449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69 + ... + 5338.

It is an arithmetic number, because the mean of its divisors is an integer number (1168128).

Almost surely, 214247445 is an apocalyptic number.

It is an amenable number.

14247445 is a deficient number, since it is larger than the sum of its proper divisors (4442603).

14247445 is a wasteful number, since it uses less digits than its factorization.

14247445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460.

The product of its digits is 17920, while the sum is 31.

The square root of 14247445 is about 3774.5787844473. The cubic root of 14247445 is about 242.4258887144.

The spelling of 14247445 in words is "fourteen million, two hundred forty-seven thousand, four hundred forty-five".

Divisors: 1 5 17 31 85 155 527 2635 5407 27035 91919 167617 459595 838085 2849489 14247445