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272747290 = 2530418969
BaseRepresentation
bin10000010000011…
…100101100011010
3201000012222221111
4100100130230122
51024310403130
643021530534
76521212414
oct2020345432
9630188844
10272747290
1112aa60092
1277413a4a
134467843a
142831b9b4
1518e2902a
hex1041cb1a

272747290 has 16 divisors (see below), whose sum is σ = 491161320. Its totient is φ = 109050880.

The previous prime is 272747273. The next prime is 272747297. The reversal of 272747290 is 92747272.

It can be written as a sum of positive squares in 4 ways, for example, as 268206129 + 4541161 = 16377^2 + 2131^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (272747297) 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 7 ways as a sum of consecutive naturals, for example, 25926 + ... + 34894.

Almost surely, 2272747290 is an apocalyptic number.

272747290 is a deficient number, since it is larger than the sum of its proper divisors (218414030).

272747290 is a wasteful number, since it uses less digits than its factorization.

272747290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12017.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 272747290 is about 16515.0625188039. The cubic root of 272747290 is about 648.5151827559.

The spelling of 272747290 in words is "two hundred seventy-two million, seven hundred forty-seven thousand, two hundred ninety".

Divisors: 1 2 5 10 3041 6082 8969 15205 17938 30410 44845 89690 27274729 54549458 136373645 272747290