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10643131 = 97113971
BaseRepresentation
bin101000100110…
…011010111011
3202000201122001
4220212122323
510211040011
61020041431
7156315352
oct50463273
922021561
1010643131
11600a384
123693277
132288515
1415b0999
15e037c1
hexa266bb

10643131 has 8 divisors (see below), whose sum is σ = 10859184. Its totient is φ = 10429440.

The previous prime is 10643123. The next prime is 10643147. The reversal of 10643131 is 13134601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10643131 - 23 = 10643123 is a prime.

It is a super-2 number, since 2×106431312 = 226552474966322, 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 = 10643099 and 10643108.

It is not an unprimeable number, because it can be changed into a prime (10643111) 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 7 ways as a sum of consecutive naturals, for example, 10476 + ... + 11446.

It is an arithmetic number, because the mean of its divisors is an integer number (1357398).

Almost surely, 210643131 is an apocalyptic number.

10643131 is a deficient number, since it is larger than the sum of its proper divisors (216053).

10643131 is an equidigital number, since it uses as much as digits as its factorization.

10643131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 10643131 is about 3262.3811855760. The cubic root of 10643131 is about 219.9664618296.

Adding to 10643131 its reverse (13134601), we get a palindrome (23777732).

The spelling of 10643131 in words is "ten million, six hundred forty-three thousand, one hundred thirty-one".

Divisors: 1 97 113 971 10961 94187 109723 10643131