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10768931 = 91111821
BaseRepresentation
bin101001000101…
…001000100011
3202021010012022
4221011020203
510224101211
61022452055
7160351205
oct51051043
922233168
1010768931
116095948
12373402b
132300864
141604775
15e2abdb
hexa45223

10768931 has 4 divisors (see below), whose sum is σ = 10781664. Its totient is φ = 10756200.

The previous prime is 10768907. The next prime is 10768943. The reversal of 10768931 is 13986701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13986701 = 29394759.

It is a cyclic number.

It is not a de Polignac number, because 10768931 - 210 = 10767907 is a prime.

It is a super-2 number, since 2×107689312 = 231939749765522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10768891 and 10768900.

It is not an unprimeable number, because it can be changed into a prime (10768951) 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, 5000 + ... + 6821.

It is an arithmetic number, because the mean of its divisors is an integer number (2695416).

Almost surely, 210768931 is an apocalyptic number.

10768931 is a deficient number, since it is larger than the sum of its proper divisors (12733).

10768931 is an equidigital number, since it uses as much as digits as its factorization.

10768931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12732.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 10768931 is about 3281.6049427072. The cubic root of 10768931 is about 220.8297249044.

The spelling of 10768931 in words is "ten million, seven hundred sixty-eight thousand, nine hundred thirty-one".

Divisors: 1 911 11821 10768931