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27481201 = 1119131489
BaseRepresentation
bin110100011010…
…1010001110001
31220201012010021
41220311101301
524013344301
62421003441
7452405056
oct150652161
956635107
1027481201
1114570040
129253581
135902687
14391502d
15262c8a1
hex1a35471

27481201 has 8 divisors (see below), whose sum is σ = 31557600. Its totient is φ = 23667840.

The previous prime is 27481169. The next prime is 27481213. The reversal of 27481201 is 10218472.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27481201 - 25 = 27481169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27481291) 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, 65536 + ... + 65953.

It is an arithmetic number, because the mean of its divisors is an integer number (3944700).

Almost surely, 227481201 is an apocalyptic number.

It is an amenable number.

27481201 is a deficient number, since it is larger than the sum of its proper divisors (4076399).

27481201 is a wasteful number, since it uses less digits than its factorization.

27481201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131519.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 27481201 is about 5242.2515201009. The cubic root of 27481201 is about 301.7717417644.

Adding to 27481201 its reverse (10218472), we get a palindrome (37699673).

The spelling of 27481201 in words is "twenty-seven million, four hundred eighty-one thousand, two hundred one".

Divisors: 1 11 19 209 131489 1446379 2498291 27481201