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27294890 = 257389927
BaseRepresentation
bin110100000011…
…1110010101010
31220100201112212
41220013302222
523441414030
62413005122
7451000640
oct150076252
956321485
1027294890
1114453067
1291837a2
13586892c
1438a7190
1525e2595
hex1a07caa

27294890 has 16 divisors (see below), whose sum is σ = 56149632. Its totient is φ = 9358224.

The previous prime is 27294853. The next prime is 27294893. The reversal of 27294890 is 9849272.

It is a super-2 number, since 2×272948902 = 1490022040224200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27294893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194894 + ... + 195033.

It is an arithmetic number, because the mean of its divisors is an integer number (3509352).

Almost surely, 227294890 is an apocalyptic number.

27294890 is an abundant number, since it is smaller than the sum of its proper divisors (28854742).

27294890 is a wasteful number, since it uses less digits than its factorization.

27294890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389941.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 27294890 is about 5224.4511673476. The cubic root of 27294890 is about 301.0882329092.

The spelling of 27294890 in words is "twenty-seven million, two hundred ninety-four thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 389927 779854 1949635 2729489 3899270 5458978 13647445 27294890