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2256649948 = 22780594641
BaseRepresentation
bin1000011010000001…
…1011111011011100
312211021021200202201
42012200123323130
514110200244243
61011531501244
7106631131240
oct20640337334
95737250681
102256649948
11a58902563
1252b8b7824
1329c6a7837
141759c6420
15d31ac04d
hex8681bedc

2256649948 has 12 divisors (see below), whose sum is σ = 4513299952. Its totient is φ = 967135680.

The previous prime is 2256649909. The next prime is 2256649979. The reversal of 2256649948 is 8499466522.

2256649948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2256649948 is an admirable number.

It is a super-3 number, since 3×22566499483 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40297293 + ... + 40297348.

Almost surely, 22256649948 is an apocalyptic number.

2256649948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2256649948 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2256649948 is a wasteful number, since it uses less digits than its factorization.

2256649948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80594652 (or 80594650 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 55.

The square root of 2256649948 is about 47504.2097923963. The cubic root of 2256649948 is about 1311.6603750792.

The spelling of 2256649948 in words is "two billion, two hundred fifty-six million, six hundred forty-nine thousand, nine hundred forty-eight".

Divisors: 1 2 4 7 14 28 80594641 161189282 322378564 564162487 1128324974 2256649948