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272804842 = 2136402421
BaseRepresentation
bin10000010000101…
…010101111101010
3201000022220220001
4100100222233222
51024314223332
643023053214
76521542252
oct2020525752
9630286801
10272804842
1112aa9a352
127744120a
13446986ab
1428334962
1518e3b0e7
hex1042abea

272804842 has 4 divisors (see below), whose sum is σ = 409207266. Its totient is φ = 136402420.

The previous prime is 272804839. The next prime is 272804843. The reversal of 272804842 is 248408272.

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

It can be written as a sum of positive squares in only one way, i.e., 248094001 + 24710841 = 15751^2 + 4971^2 .

It is not an unprimeable number, because it can be changed into a prime (272804843) 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 as a sum of consecutive naturals, namely, 68201209 + ... + 68201212.

Almost surely, 2272804842 is an apocalyptic number.

272804842 is a deficient number, since it is larger than the sum of its proper divisors (136402424).

272804842 is a wasteful number, since it uses less digits than its factorization.

272804842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136402423.

The product of its (nonzero) digits is 57344, while the sum is 37.

The square root of 272804842 is about 16516.8048362872. The cubic root of 272804842 is about 648.5607936227.

The spelling of 272804842 in words is "two hundred seventy-two million, eight hundred four thousand, eight hundred forty-two".

Divisors: 1 2 136402421 272804842