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14021442 = 2322926861
BaseRepresentation
bin110101011111…
…001101000010
3222101100210200
4311133031002
512042141232
61220310030
7230115561
oct65371502
928340720
1014021442
117a07576
124842316
132b9c116
141c0dbd8
15136e77c
hexd5f342

14021442 has 24 divisors (see below), whose sum is σ = 31428540. Its totient is φ = 4512480.

The previous prime is 14021437. The next prime is 14021453. The reversal of 14021442 is 24412041.

Adding to 14021442 its reverse (24412041), we get a palindrome (38433483).

It can be written as a sum of positive squares in 2 ways, for example, as 12809241 + 1212201 = 3579^2 + 1101^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 12909 + ... + 13952.

Almost surely, 214021442 is an apocalyptic number.

14021442 is an abundant number, since it is smaller than the sum of its proper divisors (17407098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14021442 is a wasteful number, since it uses less digits than its factorization.

14021442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26898 (or 26895 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 14021442 is about 3744.5215982819. The cubic root of 14021442 is about 241.1372071553.

The spelling of 14021442 in words is "fourteen million, twenty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 29 58 87 174 261 522 26861 53722 80583 161166 241749 483498 778969 1557938 2336907 4673814 7010721 14021442