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27490442 = 278772239
BaseRepresentation
bin110100011011…
…1100010001010
31220201122210112
41220313202022
524014143232
62421114322
7452444030
oct150674212
956648715
1027490442
1114576a81
1292589a2
135906945
143918550
1526304b2
hex1a3788a

27490442 has 16 divisors (see below), whose sum is σ = 47201280. Its totient is φ = 11762928.

The previous prime is 27490433. The next prime is 27490453. The reversal of 27490442 is 24409472.

It is a super-3 number, since 3×274904423 (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27490399 and 27490408.

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, 11159 + ... + 13397.

It is an arithmetic number, because the mean of its divisors is an integer number (2950080).

Almost surely, 227490442 is an apocalyptic number.

27490442 is a deficient number, since it is larger than the sum of its proper divisors (19710838).

27490442 is a wasteful number, since it uses less digits than its factorization.

27490442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 27490442 is about 5243.1328421088. The cubic root of 27490442 is about 301.8055631895.

The spelling of 27490442 in words is "twenty-seven million, four hundred ninety thousand, four hundred forty-two".

Divisors: 1 2 7 14 877 1754 2239 4478 6139 12278 15673 31346 1963603 3927206 13745221 27490442