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274157 = 1321089
BaseRepresentation
bin1000010111011101101
3111221001222
41002323231
532233112
65513125
72221202
oct1027355
9457058
10274157
11177a84
121127a5
1397a30
1471ca9
1556372
hex42eed

274157 has 4 divisors (see below), whose sum is σ = 295260. Its totient is φ = 253056.

The previous prime is 274147. The next prime is 274163. The reversal of 274157 is 751472.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175561 + 98596 = 419^2 + 314^2 .

It is a cyclic number.

It is not a de Polignac number, because 274157 - 26 = 274093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274117) 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 3 ways as a sum of consecutive naturals, for example, 10532 + ... + 10557.

It is an arithmetic number, because the mean of its divisors is an integer number (73815).

2274157 is an apocalyptic number.

It is an amenable number.

274157 is a deficient number, since it is larger than the sum of its proper divisors (21103).

274157 is a wasteful number, since it uses less digits than its factorization.

274157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21102.

The product of its digits is 1960, while the sum is 26.

The square root of 274157 is about 523.6000381971. The cubic root of 274157 is about 64.9630559291.

The spelling of 274157 in words is "two hundred seventy-four thousand, one hundred fifty-seven".

Divisors: 1 13 21089 274157