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275420434 = 21740120201
BaseRepresentation
bin10000011010101…
…001010100010010
3201012020210210211
4100122221110102
51031001423214
643155114334
76553015012
oct2032512422
9635223724
10275420434
111315164a3
12782a29aa
13450a3093
1428815c42
15192a60c4
hex106a9512

275420434 has 16 divisors (see below), whose sum is σ = 438545016. Its totient is φ = 129280000.

The previous prime is 275420413. The next prime is 275420443. The reversal of 275420434 is 434024572.

It is a happy number.

275420434 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 252905409 + 22515025 = 15903^2 + 4745^2 .

It is a junction number, because it is equal to n+sod(n) for n = 275420396 and 275420405.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3534 + ... + 23734.

Almost surely, 2275420434 is an apocalyptic number.

275420434 is a deficient number, since it is larger than the sum of its proper divisors (163124582).

275420434 is a wasteful number, since it uses less digits than its factorization.

275420434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20621.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 275420434 is about 16595.7956723985. The cubic root of 275420434 is about 650.6269564170.

The spelling of 275420434 in words is "two hundred seventy-five million, four hundred twenty thousand, four hundred thirty-four".

Divisors: 1 2 17 34 401 802 6817 13634 20201 40402 343417 686834 8100601 16201202 137710217 275420434