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10678981 is a prime number
BaseRepresentation
bin101000101111…
…001011000101
3202002112210211
4220233023011
510213211411
61020515421
7156525025
oct50571305
922075724
1010678981
116034305
1236abb71
13229b931
1415bda85
15e0e221
hexa2f2c5

10678981 has 2 divisors, whose sum is σ = 10678982. Its totient is φ = 10678980.

The previous prime is 10678963. The next prime is 10678991. The reversal of 10678981 is 18987601.

10678981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5688225 + 4990756 = 2385^2 + 2234^2 .

It is a cyclic number.

It is not a de Polignac number, because 10678981 - 25 = 10678949 is a prime.

It is a super-2 number, since 2×106789812 = 228081270396722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10678991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5339490 + 5339491.

It is an arithmetic number, because the mean of its divisors is an integer number (5339491).

Almost surely, 210678981 is an apocalyptic number.

It is an amenable number.

10678981 is a deficient number, since it is larger than the sum of its proper divisors (1).

10678981 is an equidigital number, since it uses as much as digits as its factorization.

10678981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 10678981 is about 3267.8710194865. The cubic root of 10678981 is about 220.2131611670.

The spelling of 10678981 in words is "ten million, six hundred seventy-eight thousand, nine hundred eighty-one".