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10681489 = 7131071097
BaseRepresentation
bin101000101111…
…110010010001
3202002200020201
4220233302101
510213301424
61020535201
7156535240
oct50576221
922080221
1010681489
116036185
1236b1501
13229cb10
1415c0957
15e0ed44
hexa2fc91

10681489 has 16 divisors (see below), whose sum is σ = 13281408. Its totient is φ = 8364672.

The previous prime is 10681481. The next prime is 10681507. The reversal of 10681489 is 98418601.

It is a happy number.

10681489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10681489 - 23 = 10681481 is a prime.

It is a super-2 number, since 2×106814892 = 228188414514242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10681481) 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, 9189 + ... + 10285.

It is an arithmetic number, because the mean of its divisors is an integer number (830088).

Almost surely, 210681489 is an apocalyptic number.

It is an amenable number.

10681489 is a deficient number, since it is larger than the sum of its proper divisors (2599919).

10681489 is a wasteful number, since it uses less digits than its factorization.

10681489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 10681489 is about 3268.2547330341. The cubic root of 10681489 is about 220.2303991218.

The spelling of 10681489 in words is "ten million, six hundred eighty-one thousand, four hundred eighty-nine".

Divisors: 1 7 13 91 107 749 1097 1391 7679 9737 14261 99827 117379 821653 1525927 10681489