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10638087 = 397139263
BaseRepresentation
bin101000100101…
…001100000111
3202000110201020
4220211030013
510210404322
61020002223
7156264555
oct50451407
922013636
1010638087
116006609
123690373
132286135
1415acbd5
15e0205c
hexa25307

10638087 has 16 divisors (see below), whose sum is σ = 14488320. Its totient is φ = 6941952.

The previous prime is 10638083. The next prime is 10638091. The reversal of 10638087 is 78083601.

It is an interprime number because it is at equal distance from previous prime (10638083) and next prime (10638091).

It is not a de Polignac number, because 10638087 - 22 = 10638083 is a prime.

It is a super-2 number, since 2×106380872 = 226337790039138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10638083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40318 + ... + 40580.

It is an arithmetic number, because the mean of its divisors is an integer number (905520).

Almost surely, 210638087 is an apocalyptic number.

10638087 is a deficient number, since it is larger than the sum of its proper divisors (3850233).

10638087 is a wasteful number, since it uses less digits than its factorization.

10638087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 10638087 is about 3261.6080389894. The cubic root of 10638087 is about 219.9317074529.

The spelling of 10638087 in words is "ten million, six hundred thirty-eight thousand, eighty-seven".

Divisors: 1 3 97 139 263 291 417 789 13483 25511 36557 40449 76533 109671 3546029 10638087