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272341257 = 390780419
BaseRepresentation
bin10000001110111…
…001100100001001
3200222110100222020
4100032321210021
51024204410012
643005115053
76514601556
oct2016714411
9628410866
10272341257
1112a803021
1277258a89
1344565696
1428253a2d
1518d98a8c
hex103b9909

272341257 has 4 divisors (see below), whose sum is σ = 363121680. Its totient is φ = 181560836.

The previous prime is 272341253. The next prime is 272341261. The reversal of 272341257 is 752143272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (272341253) and next prime (272341261).

It is a cyclic number.

It is not a de Polignac number, because 272341257 - 22 = 272341253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (272341253) 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, 45390207 + ... + 45390212.

It is an arithmetic number, because the mean of its divisors is an integer number (90780420).

Almost surely, 2272341257 is an apocalyptic number.

It is an amenable number.

272341257 is a deficient number, since it is larger than the sum of its proper divisors (90780423).

272341257 is an equidigital number, since it uses as much as digits as its factorization.

272341257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90780422.

The product of its digits is 23520, while the sum is 33.

The square root of 272341257 is about 16502.7651319408. The cubic root of 272341257 is about 648.1932127510.

The spelling of 272341257 in words is "two hundred seventy-two million, three hundred forty-one thousand, two hundred fifty-seven".

Divisors: 1 3 90780419 272341257