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10390281 = 3111718521
BaseRepresentation
bin100111101000…
…101100001001
3201112212210020
4213220230021
510124442111
61010411053
7154213236
oct47505411
921485706
1010390281
115957410
123590a89
1321ca3c5
14154678d
15da3906
hex9e8b09

10390281 has 16 divisors (see below), whose sum is σ = 16003008. Its totient is φ = 5926400.

The previous prime is 10390277. The next prime is 10390291. The reversal of 10390281 is 18209301.

It is a cyclic number.

It is not a de Polignac number, because 10390281 - 22 = 10390277 is a prime.

It is a super-2 number, since 2×103902812 = 215915878517922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10390201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8700 + ... + 9821.

It is an arithmetic number, because the mean of its divisors is an integer number (1000188).

Almost surely, 210390281 is an apocalyptic number.

10390281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10390281 is a deficient number, since it is larger than the sum of its proper divisors (5612727).

10390281 is a wasteful number, since it uses less digits than its factorization.

10390281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18552.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 10390281 is about 3223.3958801239. The cubic root of 10390281 is about 218.2105602444.

Adding to 10390281 its reverse (18209301), we get a palindrome (28599582).

The spelling of 10390281 in words is "ten million, three hundred ninety thousand, two hundred eighty-one".

Divisors: 1 3 11 17 33 51 187 561 18521 55563 203731 314857 611193 944571 3463427 10390281