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27100049 = 231178263
BaseRepresentation
bin110011101100…
…0001110010001
31212222211021112
41213120032101
523414200144
62404503105
7446226614
oct147301621
955884245
1027100049
111432a739
1290aaa95
1357cb042
14385617b
1525a499e
hex19d8391

27100049 has 4 divisors (see below), whose sum is σ = 28278336. Its totient is φ = 25921764.

The previous prime is 27100039. The next prime is 27100067. The reversal of 27100049 is 94000172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27100049 - 24 = 27100033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1178263 = 27100049 / (2 + 7 + 1 + 0 + 0 + 0 + 4 + 9).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27099997 and 27100033.

It is not an unprimeable number, because it can be changed into a prime (27100039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589109 + ... + 589154.

It is an arithmetic number, because the mean of its divisors is an integer number (7069584).

Almost surely, 227100049 is an apocalyptic number.

It is an amenable number.

27100049 is a deficient number, since it is larger than the sum of its proper divisors (1178287).

27100049 is a wasteful number, since it uses less digits than its factorization.

27100049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178286.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 27100049 is about 5205.7707402459. The cubic root of 27100049 is about 300.3700950962.

The spelling of 27100049 in words is "twenty-seven million, one hundred thousand, forty-nine".

Divisors: 1 23 1178263 27100049