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27904324 = 2272142369
BaseRepresentation
bin110101001110…
…0100101000100
31221111200112111
41222130211010
524120414244
62434030404
7456116500
oct152344504
957450474
1027904324
1114829a28
129418404
135a20146
1439c5300
1526b2e34
hex1a9c944

27904324 has 18 divisors (see below), whose sum is σ = 56805630. Its totient is φ = 11958912.

The previous prime is 27904321. The next prime is 27904343. The reversal of 27904324 is 42340972.

It can be written as a sum of positive squares in only one way, i.e., 25401600 + 2502724 = 5040^2 + 1582^2 .

It is not an unprimeable number, because it can be changed into a prime (27904321) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 70989 + ... + 71380.

Almost surely, 227904324 is an apocalyptic number.

It is an amenable number.

27904324 is an abundant number, since it is smaller than the sum of its proper divisors (28901306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27904324 is a wasteful number, since it uses less digits than its factorization.

27904324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142387 (or 142378 counting only the distinct ones).

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

The square root of 27904324 is about 5282.4543538018. The cubic root of 27904324 is about 303.3126350111.

The spelling of 27904324 in words is "twenty-seven million, nine hundred four thousand, three hundred twenty-four".

Divisors: 1 2 4 7 14 28 49 98 196 142369 284738 569476 996583 1993166 3986332 6976081 13952162 27904324