Search a number
-
+
245004137 = 7283123677
BaseRepresentation
bin11101001101001…
…11011101101001
3122002000111111022
432212213131221
51000210113022
640151142225
76033333530
oct1646473551
9562014438
10245004137
11116331264
126a074975
133b9b3781
1424779317
1516798c42
hexe9a7769

245004137 has 8 divisors (see below), whose sum is σ = 280996416. Its totient is φ = 209259792.

The previous prime is 245004103. The next prime is 245004139. The reversal of 245004137 is 731400542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245004137 - 214 = 244987753 is a prime.

It is a super-2 number, since 2×2450041372 = 120054054294229538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245004139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59858 + ... + 63819.

It is an arithmetic number, because the mean of its divisors is an integer number (35124552).

Almost surely, 2245004137 is an apocalyptic number.

It is an amenable number.

245004137 is a deficient number, since it is larger than the sum of its proper divisors (35992279).

245004137 is a wasteful number, since it uses less digits than its factorization.

245004137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123967.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 245004137 is about 15652.6079935581. The cubic root of 245004137 is about 625.7359965277.

Adding to 245004137 its reverse (731400542), we get a palindrome (976404679).

The spelling of 245004137 in words is "two hundred forty-five million, four thousand, one hundred thirty-seven".

Divisors: 1 7 283 1981 123677 865739 35000591 245004137