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256550341 = 37431131427
BaseRepresentation
bin11110100101010…
…10010111000101
3122212202002220111
433102222113011
51011134102331
641242433021
76233433115
oct1722522705
9585662814
10256550341
111218a8083
1271b02771
13411c7048
1426103045
15177c9db1
hexf4aa5c5

256550341 has 16 divisors (see below), whose sum is σ = 272188224. Its totient is φ = 241484544.

The previous prime is 256550317. The next prime is 256550347. The reversal of 256550341 is 143055652.

It is a cyclic number.

It is not a de Polignac number, because 256550341 - 25 = 256550309 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 (256550347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179070 + ... + 180496.

It is an arithmetic number, because the mean of its divisors is an integer number (17011764).

Almost surely, 2256550341 is an apocalyptic number.

It is an amenable number.

256550341 is a deficient number, since it is larger than the sum of its proper divisors (15637883).

256550341 is a wasteful number, since it uses less digits than its factorization.

256550341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 256550341 is about 16017.1889231538. The cubic root of 256550341 is about 635.4151013120.

The spelling of 256550341 in words is "two hundred fifty-six million, five hundred fifty thousand, three hundred forty-one".

Divisors: 1 37 43 113 1427 1591 4181 4859 52799 61361 161251 179783 2270357 5966287 6933793 256550341