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10305256 = 231399089
BaseRepresentation
bin100111010011…
…111011101000
3201101120011011
4213103323220
510114232011
61004513304
7153410323
oct47237350
921346134
1010305256
1158a9545
12354b834
13219a7b0
1415237ba
15d88621
hex9d3ee8

10305256 has 16 divisors (see below), whose sum is σ = 20808900. Its totient is φ = 4756224.

The previous prime is 10305241. The next prime is 10305257. The reversal of 10305256 is 65250301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10304100 + 1156 = 3210^2 + 34^2 .

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (10305257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49441 + ... + 49648.

Almost surely, 210305256 is an apocalyptic number.

It is an amenable number.

10305256 is an abundant number, since it is smaller than the sum of its proper divisors (10503644).

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

10305256 is a wasteful number, since it uses less digits than its factorization.

10305256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99108 (or 99104 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 10305256 is about 3210.1800572554. The cubic root of 10305256 is about 217.6137142632.

Adding to 10305256 its reverse (65250301), we get a palindrome (75555557).

The spelling of 10305256 in words is "ten million, three hundred five thousand, two hundred fifty-six".

Divisors: 1 2 4 8 13 26 52 104 99089 198178 396356 792712 1288157 2576314 5152628 10305256