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10298381 = 14097309
BaseRepresentation
bin100111010010…
…010000001101
3201101012201112
4213102100031
510114022011
61004421405
7153351302
oct47222015
921335645
1010298381
1158a4365
123547865
132197622
1415210a9
15d8658b
hex9d240d

10298381 has 4 divisors (see below), whose sum is σ = 10307100. Its totient is φ = 10289664.

The previous prime is 10298341. The next prime is 10298401. The reversal of 10298381 is 18389201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18389201 = 19079643.

It can be written as a sum of positive squares in 2 ways, for example, as 1713481 + 8584900 = 1309^2 + 2930^2 .

It is a cyclic number.

It is not a de Polignac number, because 10298381 - 26 = 10298317 is a prime.

It is a super-2 number, since 2×102983812 = 212113302442322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10298341) 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, 2246 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (2576775).

Almost surely, 210298381 is an apocalyptic number.

It is an amenable number.

10298381 is a deficient number, since it is larger than the sum of its proper divisors (8719).

10298381 is an equidigital number, since it uses as much as digits as its factorization.

10298381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8718.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 10298381 is about 3209.1090663921. The cubic root of 10298381 is about 217.5653109013.

The spelling of 10298381 in words is "ten million, two hundred ninety-eight thousand, three hundred eighty-one".

Divisors: 1 1409 7309 10298381