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272663427 = 390887809
BaseRepresentation
bin10000010000001…
…000001110000011
3201000001201220110
4100100020032003
51024300212202
643020042403
76520413051
oct2020101603
9630051813
10272663427
1112aa03083
1277393403
134464920a
14282d91d1
1518e0e26c
hex10408383

272663427 has 4 divisors (see below), whose sum is σ = 363551240. Its totient is φ = 181775616.

The previous prime is 272663371. The next prime is 272663431. The reversal of 272663427 is 724366272.

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

It is a de Polignac number, because none of the positive numbers 2k-272663427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272663437) 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, 45443902 + ... + 45443907.

It is an arithmetic number, because the mean of its divisors is an integer number (90887810).

Almost surely, 2272663427 is an apocalyptic number.

272663427 is a deficient number, since it is larger than the sum of its proper divisors (90887813).

272663427 is an equidigital number, since it uses as much as digits as its factorization.

272663427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90887812.

The product of its digits is 169344, while the sum is 39.

The square root of 272663427 is about 16512.5233383635. The cubic root of 272663427 is about 648.4487085191.

The spelling of 272663427 in words is "two hundred seventy-two million, six hundred sixty-three thousand, four hundred twenty-seven".

Divisors: 1 3 90887809 272663427