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2311202045 = 5755961151
BaseRepresentation
bin1000100111000010…
…0010010011111101
312222001221020011202
42021300202103331
514213131431140
61021201025245
7111162615245
oct21160422375
95861836152
102311202045
11a86682339
12546025225
132aaa97b99
1417cd46b25
15d7d85915
hex89c224fd

2311202045 has 8 divisors (see below), whose sum is σ = 2773854720. Its totient is φ = 1848686800.

The previous prime is 2311202041. The next prime is 2311202053. The reversal of 2311202045 is 5402021132.

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

It is not a de Polignac number, because 2311202045 - 22 = 2311202041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311202041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7220 + ... + 68370.

It is an arithmetic number, because the mean of its divisors is an integer number (346731840).

Almost surely, 22311202045 is an apocalyptic number.

It is an amenable number.

2311202045 is a deficient number, since it is larger than the sum of its proper divisors (462652675).

2311202045 is an equidigital number, since it uses as much as digits as its factorization.

2311202045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68715.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2311202045 is about 48074.9627664962. The cubic root of 2311202045 is about 1322.1456618872.

Adding to 2311202045 its reverse (5402021132), we get a palindrome (7713223177).

The spelling of 2311202045 in words is "two billion, three hundred eleven million, two hundred two thousand, forty-five".

Divisors: 1 5 7559 37795 61151 305755 462240409 2311202045