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10140249 = 37677207
BaseRepresentation
bin100110101011…
…101001011001
3201002011210210
4212223221121
510043441444
61001201333
7152122260
oct46535131
921064723
1010140249
1157a6579
123490249
132140662
1414bd5d7
15d547b9
hex9aba59

10140249 has 16 divisors (see below), whose sum is σ = 15684608. Its totient is φ = 5707152.

The previous prime is 10140241. The next prime is 10140253. The reversal of 10140249 is 94204101.

It is not a de Polignac number, because 10140249 - 23 = 10140241 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10140241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2197 + ... + 5010.

It is an arithmetic number, because the mean of its divisors is an integer number (980288).

Almost surely, 210140249 is an apocalyptic number.

It is an amenable number.

10140249 is a deficient number, since it is larger than the sum of its proper divisors (5544359).

10140249 is an equidigital number, since it uses as much as digits as its factorization.

10140249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7284.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 10140249 is about 3184.3757630029. The cubic root of 10140249 is about 216.4459878027.

The spelling of 10140249 in words is "ten million, one hundred forty thousand, two hundred forty-nine".

Divisors: 1 3 7 21 67 201 469 1407 7207 21621 50449 151347 482869 1448607 3380083 10140249