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10507989 = 317206039
BaseRepresentation
bin101000000101…
…011011010101
3201202212020210
4220011123111
510142223424
61013120033
7155213352
oct50053325
921685223
1010507989
115a27898
123629019
13223bb5b
141577629
15dc8729
hexa056d5

10507989 has 8 divisors (see below), whose sum is σ = 14834880. Its totient is φ = 6593216.

The previous prime is 10507951. The next prime is 10507993. The reversal of 10507989 is 98970501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10507989 - 28 = 10507733 is a prime.

It is a super-2 number, since 2×105079892 = 220835665648242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10507909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102969 + ... + 103070.

It is an arithmetic number, because the mean of its divisors is an integer number (1854360).

Almost surely, 210507989 is an apocalyptic number.

It is an amenable number.

10507989 is a deficient number, since it is larger than the sum of its proper divisors (4326891).

10507989 is a wasteful number, since it uses less digits than its factorization.

10507989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206059.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 10507989 is about 3241.6028442732. The cubic root of 10507989 is about 219.0314793889.

The spelling of 10507989 in words is "ten million, five hundred seven thousand, nine hundred eighty-nine".

Divisors: 1 3 17 51 206039 618117 3502663 10507989