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2313245 = 511137307
BaseRepresentation
bin1000110100110000011101
311100112011202
420310300131
51043010440
6121325245
725443104
oct10646035
94315152
102313245
11133aa80
12936825
1362cbac
1444303b
1530a615
hex234c1d

2313245 has 16 divisors (see below), whose sum is σ = 3060288. Its totient is φ = 1664640.

The previous prime is 2313239. The next prime is 2313247. The reversal of 2313245 is 5423132.

It is a happy number.

It is not a de Polignac number, because 2313245 - 216 = 2247709 is a prime.

It is a super-2 number, since 2×23132452 = 10702204860050, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313247) 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, 7382 + ... + 7688.

It is an arithmetic number, because the mean of its divisors is an integer number (191268).

22313245 is an apocalyptic number.

It is an amenable number.

2313245 is a deficient number, since it is larger than the sum of its proper divisors (747043).

2313245 is a wasteful number, since it uses less digits than its factorization.

2313245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its digits is 720, while the sum is 20.

The square root of 2313245 is about 1520.9355673401. The cubic root of 2313245 is about 132.2535111268.

Adding to 2313245 its reverse (5423132), we get a palindrome (7736377).

The spelling of 2313245 in words is "two million, three hundred thirteen thousand, two hundred forty-five".

Divisors: 1 5 11 55 137 307 685 1507 1535 3377 7535 16885 42059 210295 462649 2313245