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2255311247 = 7571564251
BaseRepresentation
bin1000011001101101…
…0101000110001111
312211011202200102012
42012123111012033
514104324424442
61011443051435
7106613554310
oct20633250617
95734680365
102255311247
11a580787a2
1252b370b7b
1329c3293c7
14175758607
15d2ee5582
hex866d518f

2255311247 has 8 divisors (see below), whose sum is σ = 2582017152. Its totient is φ = 1929735000.

The previous prime is 2255311211. The next prime is 2255311249. The reversal of 2255311247 is 7421135522.

2255311247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2255311247 - 26 = 2255311183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255311249) 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, 278129 + ... + 286122.

It is an arithmetic number, because the mean of its divisors is an integer number (322752144).

Almost surely, 22255311247 is an apocalyptic number.

2255311247 is a deficient number, since it is larger than the sum of its proper divisors (326705905).

2255311247 is an equidigital number, since it uses as much as digits as its factorization.

2255311247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564829.

The product of its digits is 16800, while the sum is 32.

The square root of 2255311247 is about 47490.1173614048. The cubic root of 2255311247 is about 1311.4009538974.

Adding to 2255311247 its reverse (7421135522), we get a palindrome (9676446769).

The spelling of 2255311247 in words is "two billion, two hundred fifty-five million, three hundred eleven thousand, two hundred forty-seven".

Divisors: 1 7 571 3997 564251 3949757 322187321 2255311247