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2245153231 = 5993748169
BaseRepresentation
bin1000010111010010…
…0101000111001111
312210110122121020101
42011310211013033
514044224400411
61010441231531
7106431326146
oct20564450717
95713577211
102245153231
11a5236a942
12527a925a7
1329a1b0949
1417427275d
15d218a8c1
hex85d251cf

2245153231 has 4 divisors (see below), whose sum is σ = 2248902000. Its totient is φ = 2241404464.

The previous prime is 2245153217. The next prime is 2245153241. The reversal of 2245153231 is 1323515422.

2245153231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1323515422 = 2661757711.

It is a cyclic number.

It is not a de Polignac number, because 2245153231 - 27 = 2245153103 is a prime.

It is a super-2 number, since 2×22451532312 = 10081426061339478722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2245153231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245153201) 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, 1873486 + ... + 1874683.

It is an arithmetic number, because the mean of its divisors is an integer number (562225500).

Almost surely, 22245153231 is an apocalyptic number.

2245153231 is a deficient number, since it is larger than the sum of its proper divisors (3748769).

2245153231 is an equidigital number, since it uses as much as digits as its factorization.

2245153231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748768.

The product of its digits is 7200, while the sum is 28.

The square root of 2245153231 is about 47383.0479285577. The cubic root of 2245153231 is about 1309.4291223110.

Adding to 2245153231 its reverse (1323515422), we get a palindrome (3568668653).

The spelling of 2245153231 in words is "two billion, two hundred forty-five million, one hundred fifty-three thousand, two hundred thirty-one".

Divisors: 1 599 3748169 2245153231