Search a number
-
+
272772469 = 1312120789
BaseRepresentation
bin10000010000100…
…010110101110101
3201000021021111001
4100100202311311
51024312204334
643022243301
76521346004
oct2020426565
9630237431
10272772469
1112aa77aa2
1277426531
1344686a38
1428326c3b
1518e31714
hex10422d75

272772469 has 4 divisors (see below), whose sum is σ = 272806380. Its totient is φ = 272738560.

The previous prime is 272772449. The next prime is 272772481. The reversal of 272772469 is 964277272.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 141372100 + 131400369 = 11890^2 + 11463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-272772469 is a prime.

It is a super-3 number, since 3×2727724693 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272772449) 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, 2727 + ... + 23515.

It is an arithmetic number, because the mean of its divisors is an integer number (68201595).

Almost surely, 2272772469 is an apocalyptic number.

It is an amenable number.

272772469 is a deficient number, since it is larger than the sum of its proper divisors (33911).

272772469 is a wasteful number, since it uses less digits than its factorization.

272772469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33910.

The product of its digits is 592704, while the sum is 46.

The square root of 272772469 is about 16515.8248053193. The cubic root of 272772469 is about 648.5351382996.

The spelling of 272772469 in words is "two hundred seventy-two million, seven hundred seventy-two thousand, four hundred sixty-nine".

Divisors: 1 13121 20789 272772469