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10858381 is a prime number
BaseRepresentation
bin101001011010…
…111110001101
3202102122220021
4221122332031
510234432011
61024422141
7161203042
oct51327615
922378807
1010858381
116147076
123777951
1323324a1
1416291c9
15e47471
hexa5af8d

10858381 has 2 divisors, whose sum is σ = 10858382. Its totient is φ = 10858380.

The previous prime is 10858361. The next prime is 10858391. The reversal of 10858381 is 18385801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9060100 + 1798281 = 3010^2 + 1341^2 .

It is a cyclic number.

It is not a de Polignac number, because 10858381 - 25 = 10858349 is a prime.

It is a super-2 number, since 2×108583812 = 235808875882322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10858361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5429190 + 5429191.

It is an arithmetic number, because the mean of its divisors is an integer number (5429191).

Almost surely, 210858381 is an apocalyptic number.

It is an amenable number.

10858381 is a deficient number, since it is larger than the sum of its proper divisors (1).

10858381 is an equidigital number, since it uses as much as digits as its factorization.

10858381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 10858381 is about 3295.2057598881. The cubic root of 10858381 is about 221.4394659522.

The spelling of 10858381 in words is "ten million, eight hundred fifty-eight thousand, three hundred eighty-one".