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10678765 = 52135753
BaseRepresentation
bin101000101111…
…000111101101
3202002112111211
4220233013231
510213210030
61020514421
7156524266
oct50570755
922075454
1010678765
116034129
1236aba11
13229b7c6
1415bd96d
15e0e12a
hexa2f1ed

10678765 has 4 divisors (see below), whose sum is σ = 12814524. Its totient is φ = 8543008.

The previous prime is 10678763. The next prime is 10678769. The reversal of 10678765 is 56787601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56787601 = 134368277.

It can be written as a sum of positive squares in 2 ways, for example, as 3613801 + 7064964 = 1901^2 + 2658^2 .

It is a cyclic number.

It is not a de Polignac number, because 10678765 - 21 = 10678763 is a prime.

It is a super-2 number, since 2×106787652 = 228072043850450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10678763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067872 + ... + 1067881.

It is an arithmetic number, because the mean of its divisors is an integer number (3203631).

Almost surely, 210678765 is an apocalyptic number.

It is an amenable number.

10678765 is a deficient number, since it is larger than the sum of its proper divisors (2135759).

10678765 is an equidigital number, since it uses as much as digits as its factorization.

10678765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135758.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 10678765 is about 3267.8379702794. The cubic root of 10678765 is about 220.2116764322.

The spelling of 10678765 in words is "ten million, six hundred seventy-eight thousand, seven hundred sixty-five".

Divisors: 1 5 2135753 10678765