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10309412 = 2217151609
BaseRepresentation
bin100111010100…
…111100100100
3201101202212002
4213110330210
510114400122
61004544432
7153425411
oct47247444
921352762
1010309412
115901683
123552118
13219c659
141525108
15d89992
hex9d4f24

10309412 has 12 divisors (see below), whose sum is σ = 19102860. Its totient is φ = 4851456.

The previous prime is 10309399. The next prime is 10309417. The reversal of 10309412 is 21490301.

10309412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7540516 + 2768896 = 2746^2 + 1664^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10309417) 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, 75737 + ... + 75872.

It is an arithmetic number, because the mean of its divisors is an integer number (1591905).

Almost surely, 210309412 is an apocalyptic number.

It is an amenable number.

10309412 is a deficient number, since it is larger than the sum of its proper divisors (8793448).

10309412 is a wasteful number, since it uses less digits than its factorization.

10309412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151630 (or 151628 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 10309412 is about 3210.8273077199. The cubic root of 10309412 is about 217.6429640960.

Adding to 10309412 its reverse (21490301), we get a palindrome (31799713).

The spelling of 10309412 in words is "ten million, three hundred nine thousand, four hundred twelve".

Divisors: 1 2 4 17 34 68 151609 303218 606436 2577353 5154706 10309412