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272669489 = 1391961651
BaseRepresentation
bin10000010000001…
…001101100110001
3201000002001012222
4100100021230301
51024300410424
643020130425
76520436531
oct2020115461
9630061188
10272669489
1112aa07694
1277396a15
134464bbc1
14282db4c1
1518e10e5e
hex10409b31

272669489 has 4 divisors (see below), whose sum is σ = 274631280. Its totient is φ = 270707700.

The previous prime is 272669483. The next prime is 272669533. The reversal of 272669489 is 984966272.

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 a cyclic number.

It is not a de Polignac number, because 272669489 - 28 = 272669233 is a prime.

It is a super-2 number, since 2×2726694892 = 148697300463042242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 272669489.

It is not an unprimeable number, because it can be changed into a prime (272669483) 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, 980687 + ... + 980964.

It is an arithmetic number, because the mean of its divisors is an integer number (68657820).

Almost surely, 2272669489 is an apocalyptic number.

It is an amenable number.

272669489 is a deficient number, since it is larger than the sum of its proper divisors (1961791).

272669489 is a wasteful number, since it uses less digits than its factorization.

272669489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961790.

The product of its digits is 2612736, while the sum is 53.

The square root of 272669489 is about 16512.7068949945. The cubic root of 272669489 is about 648.4535140370.

The spelling of 272669489 in words is "two hundred seventy-two million, six hundred sixty-nine thousand, four hundred eighty-nine".

Divisors: 1 139 1961651 272669489