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259131893 = 538358907
BaseRepresentation
bin11110111001000…
…00100111110101
3200001121021010112
433130200213311
51012314210033
641414032405
76264404366
oct1734404765
9601537115
10259131893
11123300699
1272948705
13418bc0a7
14265b5b6d
1517b39c48
hexf7209f5

259131893 has 8 divisors (see below), whose sum is σ = 267206688. Its totient is φ = 251175184.

The previous prime is 259131877. The next prime is 259131919. The reversal of 259131893 is 398131952.

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 259131893 - 24 = 259131877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 259131893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259131863) 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, 25055 + ... + 33852.

It is an arithmetic number, because the mean of its divisors is an integer number (33400836).

Almost surely, 2259131893 is an apocalyptic number.

It is an amenable number.

259131893 is a deficient number, since it is larger than the sum of its proper divisors (8074795).

259131893 is an equidigital number, since it uses as much as digits as its factorization.

259131893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59043.

The product of its digits is 58320, while the sum is 41.

The square root of 259131893 is about 16097.5741340116. The cubic root of 259131893 is about 637.5392921059.

The spelling of 259131893 in words is "two hundred fifty-nine million, one hundred thirty-one thousand, eight hundred ninety-three".

Divisors: 1 53 83 4399 58907 3122071 4889281 259131893