Search a number
-
+
252094081 = 1012495981
BaseRepresentation
bin11110000011010…
…10011010000001
3122120100201001211
433001222122001
51004014002311
641003130121
76150523111
oct1701523201
9576321054
10252094081
1111a334018
1270513941
13402c68c5
14256a3041
15171e9821
hexf06a681

252094081 has 4 divisors (see below), whose sum is σ = 254590164. Its totient is φ = 249598000.

The previous prime is 252094067. The next prime is 252094121. The reversal of 252094081 is 180490252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 201185856 + 50908225 = 14184^2 + 7135^2 .

It is a cyclic number.

It is not a de Polignac number, because 252094081 - 219 = 251569793 is a prime.

It is a super-2 number, since 2×2520940812 = 127102851350469122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252094021) 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, 1247890 + ... + 1248091.

It is an arithmetic number, because the mean of its divisors is an integer number (63647541).

Almost surely, 2252094081 is an apocalyptic number.

It is an amenable number.

252094081 is a deficient number, since it is larger than the sum of its proper divisors (2496083).

252094081 is a wasteful number, since it uses less digits than its factorization.

252094081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496082.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 252094081 is about 15877.4708628295. The cubic root of 252094081 is about 631.7145544073.

The spelling of 252094081 in words is "two hundred fifty-two million, ninety-four thousand, eighty-one".

Divisors: 1 101 2495981 252094081