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27242293 = 132331487
BaseRepresentation
bin110011111101…
…0111100110101
31220021001101211
41213322330311
523433223133
62411521421
7450361411
oct147727465
956231354
1027242293
11144175a1
129159271
13584aa00
143891d41
1525d1bcd
hex19faf35

27242293 has 12 divisors (see below), whose sum is σ = 29648928. Its totient is φ = 25019280.

The previous prime is 27242291. The next prime is 27242309. The reversal of 27242293 is 39224272.

It is not a de Polignac number, because 27242293 - 21 = 27242291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27242291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55696 + ... + 56182.

It is an arithmetic number, because the mean of its divisors is an integer number (2470744).

Almost surely, 227242293 is an apocalyptic number.

It is an amenable number.

27242293 is a deficient number, since it is larger than the sum of its proper divisors (2406635).

27242293 is a wasteful number, since it uses less digits than its factorization.

27242293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 831 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 27242293 is about 5219.4150055346. The cubic root of 27242293 is about 300.8947104727.

The spelling of 27242293 in words is "twenty-seven million, two hundred forty-two thousand, two hundred ninety-three".

Divisors: 1 13 169 331 487 4303 6331 55939 82303 161197 2095561 27242293