Search a number
-
+
10688513 = 11971683
BaseRepresentation
bin101000110001…
…100000000001
3202010000212212
4220301200001
510214013023
61021031505
7156564563
oct50614001
922100785
1010688513
116040490
1236b5595
1322a3084
1415c3333
15e11e78
hexa31801

10688513 has 4 divisors (see below), whose sum is σ = 11660208. Its totient is φ = 9716820.

The previous prime is 10688497. The next prime is 10688519. The reversal of 10688513 is 31588601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10688513 - 24 = 10688497 is a prime.

It is a super-2 number, since 2×106885132 = 228488620302338, which contains 22 as substring.

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 10688513.

It is not an unprimeable number, because it can be changed into a prime (10688519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485831 + ... + 485852.

It is an arithmetic number, because the mean of its divisors is an integer number (2915052).

Almost surely, 210688513 is an apocalyptic number.

It is an amenable number.

10688513 is a deficient number, since it is larger than the sum of its proper divisors (971695).

10688513 is an equidigital number, since it uses as much as digits as its factorization.

10688513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971694.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 10688513 is about 3269.3291360767. The cubic root of 10688513 is about 220.2786620364.

The spelling of 10688513 in words is "ten million, six hundred eighty-eight thousand, five hundred thirteen".

Divisors: 1 11 971683 10688513