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272939357 = 1993136949
BaseRepresentation
bin10000010001001…
…011100101011101
3201000120202102002
4100101023211131
51024333024412
643030012045
76522642365
oct2021134535
9630522362
10272939357
11130081419
12774a7025
13447149a2
142836b9a5
1518e65dc2
hex1044b95d

272939357 has 4 divisors (see below), whose sum is σ = 273078300. Its totient is φ = 272800416.

The previous prime is 272939353. The next prime is 272939377. The reversal of 272939357 is 753939272.

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 250462276 + 22477081 = 15826^2 + 4741^2 .

It is a cyclic number.

It is not a de Polignac number, because 272939357 - 22 = 272939353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272939353) 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 3 ways as a sum of consecutive naturals, for example, 66482 + ... + 70467.

It is an arithmetic number, because the mean of its divisors is an integer number (68269575).

Almost surely, 2272939357 is an apocalyptic number.

It is an amenable number.

272939357 is a deficient number, since it is larger than the sum of its proper divisors (138943).

272939357 is a wasteful number, since it uses less digits than its factorization.

272939357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138942.

The product of its digits is 714420, while the sum is 47.

The square root of 272939357 is about 16520.8763992713. The cubic root of 272939357 is about 648.6673738670.

The spelling of 272939357 in words is "two hundred seventy-two million, nine hundred thirty-nine thousand, three hundred fifty-seven".

Divisors: 1 1993 136949 272939357