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2256500213 = 11205136383
BaseRepresentation
bin1000011001111111…
…0111010111110101
312211021000002100222
42012133313113311
514110131001323
61011524344125
7106626635552
oct20637672765
95737002328
102256500213
11a58810010
1252b845045
1329c654636
14175987a29
15d317c9c8
hex867f75f5

2256500213 has 4 divisors (see below), whose sum is σ = 2461636608. Its totient is φ = 2051363820.

The previous prime is 2256500189. The next prime is 2256500243. The reversal of 2256500213 is 3120056522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2256500213 - 28 = 2256499957 is a prime.

It is a super-2 number, since 2×22565002132 = 10183586422538090738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256500243) 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, 102568181 + ... + 102568202.

It is an arithmetic number, because the mean of its divisors is an integer number (615409152).

Almost surely, 22256500213 is an apocalyptic number.

It is an amenable number.

2256500213 is a deficient number, since it is larger than the sum of its proper divisors (205136395).

2256500213 is a wasteful number, since it uses less digits than its factorization.

2256500213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205136394.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2256500213 is about 47502.6337480355. The cubic root of 2256500213 is about 1311.6313636663.

Adding to 2256500213 its reverse (3120056522), we get a palindrome (5376556735).

The spelling of 2256500213 in words is "two billion, two hundred fifty-six million, five hundred thousand, two hundred thirteen".

Divisors: 1 11 205136383 2256500213