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27268945 = 511495799
BaseRepresentation
bin110100000000…
…1011101010001
31220022101221221
41220001131101
523440101240
62412245041
7450532204
oct150013521
956271857
1027268945
1114435620
129170781
135859b92
14389b93b
1525d9a4a
hex1a01751

27268945 has 8 divisors (see below), whose sum is σ = 35697600. Its totient is φ = 19831920.

The previous prime is 27268921. The next prime is 27268957. The reversal of 27268945 is 54986272.

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

It is not a de Polignac number, because 27268945 - 221 = 25171793 is a prime.

It is a super-2 number, since 2×272689452 = 1487190722826050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247845 + ... + 247954.

It is an arithmetic number, because the mean of its divisors is an integer number (4462200).

Almost surely, 227268945 is an apocalyptic number.

It is an amenable number.

27268945 is a deficient number, since it is larger than the sum of its proper divisors (8428655).

27268945 is a wasteful number, since it uses less digits than its factorization.

27268945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495815.

The product of its digits is 241920, while the sum is 43.

The square root of 27268945 is about 5221.9675410711. The cubic root of 27268945 is about 300.9928034394.

The spelling of 27268945 in words is "twenty-seven million, two hundred sixty-eight thousand, nine hundred forty-five".

Divisors: 1 5 11 55 495799 2478995 5453789 27268945