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10689073 = 172412609
BaseRepresentation
bin101000110001…
…101000110001
3202010001122121
4220301220301
510214022243
61021034241
7156566323
oct50615061
922101577
1010689073
11604094a
1236b5981
1322a33c5
1415c3613
15e121ed
hexa31a31

10689073 has 8 divisors (see below), whose sum is σ = 11369160. Its totient is φ = 10014720.

The previous prime is 10689071. The next prime is 10689083. The reversal of 10689073 is 37098601.

10689073 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4048144 + 6640929 = 2012^2 + 2577^2 .

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 10689073 - 21 = 10689071 is a prime.

It is a super-2 number, since 2×106890732 = 228512563198658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10689071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2793 + ... + 5401.

It is an arithmetic number, because the mean of its divisors is an integer number (1421145).

Almost surely, 210689073 is an apocalyptic number.

It is an amenable number.

10689073 is a deficient number, since it is larger than the sum of its proper divisors (680087).

10689073 is a wasteful number, since it uses less digits than its factorization.

10689073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 10689073 is about 3269.4147794368. The cubic root of 10689073 is about 220.2825089668.

The spelling of 10689073 in words is "ten million, six hundred eighty-nine thousand, seventy-three".

Divisors: 1 17 241 2609 4097 44353 628769 10689073