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10122869 is a prime number
BaseRepresentation
bin100110100111…
…011001110101
3201001021222002
4212213121311
510042412434
61000545045
7152020511
oct46473165
921037862
1010122869
115794509
123482185
132135783
1414b7141
15d4e57e
hex9a7675

10122869 has 2 divisors, whose sum is σ = 10122870. Its totient is φ = 10122868.

The previous prime is 10122863. The next prime is 10122881. The reversal of 10122869 is 96822101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7102225 + 3020644 = 2665^2 + 1738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10122869 is a prime.

It is a super-2 number, since 2×101228692 = 204944953582322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10122863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061434 + 5061435.

It is an arithmetic number, because the mean of its divisors is an integer number (5061435).

Almost surely, 210122869 is an apocalyptic number.

It is an amenable number.

10122869 is a deficient number, since it is larger than the sum of its proper divisors (1).

10122869 is an equidigital number, since it uses as much as digits as its factorization.

10122869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 10122869 is about 3181.6456433739. The cubic root of 10122869 is about 216.3222570302.

The spelling of 10122869 in words is "ten million, one hundred twenty-two thousand, eight hundred sixty-nine".