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27214145 = 571037549
BaseRepresentation
bin110011111010…
…0000101000001
31220012121210022
41213310011001
523431323040
62411143225
7450213350
oct147640501
956177708
1027214145
11143a8432
129144b15
13583ac5a
143885997
1525c86b5
hex19f4141

27214145 has 16 divisors (see below), whose sum is σ = 37689600. Its totient is φ = 18477504.

The previous prime is 27214097. The next prime is 27214177. The reversal of 27214145 is 54141272.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-27214145 is a prime.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 170 + ... + 7379.

It is an arithmetic number, because the mean of its divisors is an integer number (2355600).

Almost surely, 227214145 is an apocalyptic number.

It is an amenable number.

27214145 is a deficient number, since it is larger than the sum of its proper divisors (10475455).

27214145 is a wasteful number, since it uses less digits than its factorization.

27214145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7664.

The product of its digits is 2240, while the sum is 26.

The square root of 27214145 is about 5216.7178378747. The cubic root of 27214145 is about 300.7910419717.

The spelling of 27214145 in words is "twenty-seven million, two hundred fourteen thousand, one hundred forty-five".

Divisors: 1 5 7 35 103 515 721 3605 7549 37745 52843 264215 777547 3887735 5442829 27214145