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274032081 = 3297313897
BaseRepresentation
bin10000010101010…
…110010111010001
3201002122021100100
4100111112113101
51030123011311
643105243013
76535143231
oct2025262721
9632567310
10274032081
111307583a4
1277933469
1344a0817b
1428573cc1
15190cea56
hex105565d1

274032081 has 12 divisors (see below), whose sum is σ = 399906052. Its totient is φ = 180804096.

The previous prime is 274032071. The next prime is 274032113. The reversal of 274032081 is 180230472.

It can be written as a sum of positive squares in 2 ways, for example, as 201185856 + 72846225 = 14184^2 + 8535^2 .

It is not a de Polignac number, because 274032081 - 213 = 274023889 is a prime.

It is a super-2 number, since 2×2740320812 = 150187162834381122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274032001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156076 + ... + 157821.

Almost surely, 2274032081 is an apocalyptic number.

It is an amenable number.

274032081 is a deficient number, since it is larger than the sum of its proper divisors (125873971).

274032081 is a wasteful number, since it uses less digits than its factorization.

274032081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314000 (or 313997 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 274032081 is about 16553.9143709275. The cubic root of 274032081 is about 649.5318767501.

The spelling of 274032081 in words is "two hundred seventy-four million, thirty-two thousand, eighty-one".

Divisors: 1 3 9 97 291 873 313897 941691 2825073 30448009 91344027 274032081