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10310989 = 131017853
BaseRepresentation
bin100111010101…
…010101001101
3201101212000111
4213111111031
510114422424
61005000021
7153433123
oct47252515
921355014
1010310989
115902887
123553011
1321a02a0
141525913
15d8a194
hex9d554d

10310989 has 8 divisors (see below), whose sum is σ = 11215512. Its totient is φ = 9422400.

The previous prime is 10310983. The next prime is 10310999. The reversal of 10310989 is 98901301.

It can be written as a sum of positive squares in 4 ways, for example, as 293764 + 10017225 = 542^2 + 3165^2 .

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

It is not a de Polignac number, because 10310989 - 25 = 10310957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10310989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10310983) 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, 2614 + ... + 5239.

It is an arithmetic number, because the mean of its divisors is an integer number (1401939).

Almost surely, 210310989 is an apocalyptic number.

It is an amenable number.

10310989 is a deficient number, since it is larger than the sum of its proper divisors (904523).

10310989 is a wasteful number, since it uses less digits than its factorization.

10310989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7967.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 10310989 is about 3211.0728736670. The cubic root of 10310989 is about 217.6540609286.

The spelling of 10310989 in words is "ten million, three hundred ten thousand, nine hundred eighty-nine".

Divisors: 1 13 101 1313 7853 102089 793153 10310989