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10259261 = 18156681
BaseRepresentation
bin100111001000…
…101100111101
3201022020001122
4213020230331
510111244021
61003520325
7153126245
oct47105475
921266048
1010259261
115877a31
1235290a5
13218288c
141510b25
15d79bab
hex9c8b3d

10259261 has 4 divisors (see below), whose sum is σ = 10316124. Its totient is φ = 10202400.

The previous prime is 10259257. The next prime is 10259269. The reversal of 10259261 is 16295201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1907161 + 8352100 = 1381^2 + 2890^2 .

It is a cyclic number.

It is not a de Polignac number, because 10259261 - 22 = 10259257 is a prime.

It is a super-2 number, since 2×102592612 = 210504872532242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10259261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10259269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28160 + ... + 28521.

It is an arithmetic number, because the mean of its divisors is an integer number (2579031).

Almost surely, 210259261 is an apocalyptic number.

It is an amenable number.

10259261 is a deficient number, since it is larger than the sum of its proper divisors (56863).

10259261 is an equidigital number, since it uses as much as digits as its factorization.

10259261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56862.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 10259261 is about 3203.0081173797. The cubic root of 10259261 is about 217.2894761287.

The spelling of 10259261 in words is "ten million, two hundred fifty-nine thousand, two hundred sixty-one".

Divisors: 1 181 56681 10259261