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10304931 = 371337747
BaseRepresentation
bin100111010011…
…110110100011
3201101112201010
4213103312203
510114224211
61004512003
7153406350
oct47236643
921345633
1010304931
1158a927a
12354b603
13219a5c0
141523627
15d884a6
hex9d3da3

10304931 has 16 divisors (see below), whose sum is σ = 16911104. Its totient is φ = 5435424.

The previous prime is 10304911. The next prime is 10304939. The reversal of 10304931 is 13940301.

It is not a de Polignac number, because 10304931 - 26 = 10304867 is a prime.

It is a super-2 number, since 2×103049312 = 212383205829522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 10304898 and 10304907.

It is not an unprimeable number, because it can be changed into a prime (10304939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18601 + ... + 19146.

It is an arithmetic number, because the mean of its divisors is an integer number (1056944).

Almost surely, 210304931 is an apocalyptic number.

10304931 is a deficient number, since it is larger than the sum of its proper divisors (6606173).

10304931 is a wasteful number, since it uses less digits than its factorization.

10304931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37770.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 10304931 is about 3210.1294366427. The cubic root of 10304931 is about 217.6114265892.

The spelling of 10304931 in words is "ten million, three hundred four thousand, nine hundred thirty-one".

Divisors: 1 3 7 13 21 39 91 273 37747 113241 264229 490711 792687 1472133 3434977 10304931