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27938253 = 371330393
BaseRepresentation
bin110101010010…
…0110111001101
31221120102002010
41222210313031
524123011003
62434451433
7456320430
oct152446715
957512063
1027938253
1114852472
129433b79
135a32715
1439d3817
1526bd003
hex1aa4dcd

27938253 has 8 divisors (see below), whose sum is σ = 42572608. Its totient is φ = 15964704.

The previous prime is 27938243. The next prime is 27938269. The reversal of 27938253 is 35283972.

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

It is not a de Polignac number, because 27938253 - 25 = 27938221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27938243) 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, 665176 + ... + 665217.

It is an arithmetic number, because the mean of its divisors is an integer number (5321576).

Almost surely, 227938253 is an apocalyptic number.

It is an amenable number.

27938253 is a deficient number, since it is larger than the sum of its proper divisors (14634355).

27938253 is a wasteful number, since it uses less digits than its factorization.

27938253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330403.

The product of its digits is 90720, while the sum is 39.

The square root of 27938253 is about 5285.6648588423. The cubic root of 27938253 is about 303.4355183106.

The spelling of 27938253 in words is "twenty-seven million, nine hundred thirty-eight thousand, two hundred fifty-three".

Divisors: 1 3 7 21 1330393 3991179 9312751 27938253