Search a number
-
+
252048889 = 1929617499
BaseRepresentation
bin11110000010111…
…11010111111001
3122120021102002001
433001133113321
51004011031024
641002141001
76150244261
oct1701372771
9576242061
10252048889
1111a303074
12704b1761
13402ac171
14256907a1
15171db244
hexf05f5f9

252048889 has 16 divisors (see below), whose sum is σ = 279000000. Its totient is φ = 226739520.

The previous prime is 252048877. The next prime is 252048917. The reversal of 252048889 is 988840252.

It is a cyclic number.

It is not a de Polignac number, because 252048889 - 211 = 252046841 is a prime.

It is a super-2 number, since 2×2520488892 = 127057284892268642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252048809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29862 + ... + 37360.

It is an arithmetic number, because the mean of its divisors is an integer number (17437500).

Almost surely, 2252048889 is an apocalyptic number.

252048889 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

252048889 is a deficient number, since it is larger than the sum of its proper divisors (26951111).

252048889 is a wasteful number, since it uses less digits than its factorization.

252048889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7608.

The product of its (nonzero) digits is 368640, while the sum is 46.

The square root of 252048889 is about 15876.0476504702. The cubic root of 252048889 is about 631.6768037520.

The spelling of 252048889 in words is "two hundred fifty-two million, forty-eight thousand, eight hundred eighty-nine".

Divisors: 1 19 29 61 551 1159 1769 7499 33611 142481 217471 457439 4131949 8691341 13265731 252048889