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272792893 = 1371991189
BaseRepresentation
bin10000010000100…
…111110100111101
3201000022022111111
4100100213310331
51024313333033
643022522021
76521462362
oct2020476475
9630268444
10272792893
1112aa9137a
1277436311
1344693119
1428330469
1518e377cd
hex10427d3d

272792893 has 4 divisors (see below), whose sum is σ = 274784220. Its totient is φ = 270801568.

The previous prime is 272792887. The next prime is 272792909. The reversal of 272792893 is 398297272.

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 185967769 + 86825124 = 13637^2 + 9318^2 .

It is a cyclic number.

It is not a de Polignac number, because 272792893 - 29 = 272792381 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272792873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995458 + ... + 995731.

It is an arithmetic number, because the mean of its divisors is an integer number (68696055).

Almost surely, 2272792893 is an apocalyptic number.

It is an amenable number.

272792893 is a deficient number, since it is larger than the sum of its proper divisors (1991327).

272792893 is a wasteful number, since it uses less digits than its factorization.

272792893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991326.

The product of its digits is 762048, while the sum is 49.

The square root of 272792893 is about 16516.4431098224. The cubic root of 272792893 is about 648.5513243797.

The spelling of 272792893 in words is "two hundred seventy-two million, seven hundred ninety-two thousand, eight hundred ninety-three".

Divisors: 1 137 1991189 272792893