Search a number
245007 = 3273889
BaseRepresentation
bin111011110100001111
3110110002100
4323310033
530320012
65130143
72040210
oct736417
9413070
10245007
11158094
12b9953
1387699
1465407
154c8dc
hex3bd0f

245007 has 12 divisors (see below), whose sum is σ = 404560. Its totient is φ = 139968.

The previous prime is 244997. The next prime is 245023. The reversal of 245007 is 700542.

Adding to 245007 its sum of digits (18), we get a square (245025 = 4952).

Adding to 245007 its reverse (700542), we get a palindrome (945549).

Subtracting 245007 from its reverse (700542), we obtain a triangular number (455535 = T954).

It is a happy number.

It is not a de Polignac number, because 245007 - 26 = 244943 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1882 + ... + 2007.

2245007 is an apocalyptic number.

245007 is a deficient number, since it is larger than the sum of its proper divisors (159553).

245007 is a wasteful number, since it uses less digits than its factorization.

245007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902 (or 3899 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 245007 is about 494.9818178479. The cubic root of 245007 is about 62.5738433868.

The spelling of 245007 in words is "two hundred forty-five thousand, seven".