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1027274057 = 3313103547
BaseRepresentation
bin111101001110101…
…111010101001001
32122120222221002022
4331032233111021
54100440232212
6245534014225
734312454045
oct7516572511
92576887068
101027274057
11487962227
12248047375
13134a99494
149a60b025
15602bc772
hex3d3af549

1027274057 has 4 divisors (see below), whose sum is σ = 1030377936. Its totient is φ = 1024170180.

The previous prime is 1027274041. The next prime is 1027274069. The reversal of 1027274057 is 7504727201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7504727201 = 23326292487.

It is a cyclic number.

It is not a de Polignac number, because 1027274057 - 24 = 1027274041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1027234057) 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, 1551443 + ... + 1552104.

It is an arithmetic number, because the mean of its divisors is an integer number (257594484).

Almost surely, 21027274057 is an apocalyptic number.

It is an amenable number.

1027274057 is a deficient number, since it is larger than the sum of its proper divisors (3103879).

1027274057 is an equidigital number, since it uses as much as digits as its factorization.

1027274057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103878.

The product of its (nonzero) digits is 27440, while the sum is 35.

The square root of 1027274057 is about 32051.1163144125. The cubic root of 1027274057 is about 1009.0099296950.

The spelling of 1027274057 in words is "one billion, twenty-seven million, two hundred seventy-four thousand, fifty-seven".

Divisors: 1 331 3103547 1027274057