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10304031 = 33434677
BaseRepresentation
bin100111010011…
…101000011111
3201101111110210
4213103220133
510114212111
61004503503
7153403623
oct47235037
921344423
1010304031
1158a8631
12354ab93
13219a07a
141523183
15d880a6
hex9d3a1f

10304031 has 4 divisors (see below), whose sum is σ = 13738712. Its totient is φ = 6869352.

The previous prime is 10304029. The next prime is 10304033. The reversal of 10304031 is 13040301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13040301 = 34346767.

It is an interprime number because it is at equal distance from previous prime (10304029) and next prime (10304033).

It is not a de Polignac number, because 10304031 - 21 = 10304029 is a prime.

It is a super-2 number, since 2×103040312 = 212346109697922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10303998 and 10304016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10304033) 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, 1717336 + ... + 1717341.

It is an arithmetic number, because the mean of its divisors is an integer number (3434678).

Almost surely, 210304031 is an apocalyptic number.

10304031 is a deficient number, since it is larger than the sum of its proper divisors (3434681).

10304031 is an equidigital number, since it uses as much as digits as its factorization.

10304031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434680.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 10304031 is about 3209.9892523185. The cubic root of 10304031 is about 217.6050912407.

Adding to 10304031 its reverse (13040301), we get a palindrome (23344332).

The spelling of 10304031 in words is "ten million, three hundred four thousand, thirty-one".

Divisors: 1 3 3434677 10304031