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10140447 = 323281523
BaseRepresentation
bin100110101011…
…101100011111
3201002012002010
4212223230133
510043443242
61001202303
7152122662
oct46535437
921065063
1010140447
1157a6739
123490393
132140785
1414bd6d9
15d5489c
hex9abb1f

10140447 has 16 divisors (see below), whose sum is σ = 14185728. Its totient is φ = 6431040.

The previous prime is 10140439. The next prime is 10140451. The reversal of 10140447 is 74404101.

It is not a de Polignac number, because 10140447 - 23 = 10140439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10140047) 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, 19128 + ... + 19650.

It is an arithmetic number, because the mean of its divisors is an integer number (886608).

Almost surely, 210140447 is an apocalyptic number.

10140447 is a deficient number, since it is larger than the sum of its proper divisors (4045281).

10140447 is a wasteful number, since it uses less digits than its factorization.

10140447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 10140447 is about 3184.4068521469. The cubic root of 10140447 is about 216.4473965790.

Adding to 10140447 its reverse (74404101), we get a palindrome (84544548).

The spelling of 10140447 in words is "ten million, one hundred forty thousand, four hundred forty-seven".

Divisors: 1 3 23 69 281 523 843 1569 6463 12029 19389 36087 146963 440889 3380149 10140447