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10126881 = 321125209
BaseRepresentation
bin100110101000…
…011000100001
3201001111110200
4212220120201
510043030011
61001015413
7152035302
oct46503041
921044420
1010126881
115797526
123484569
13213754b
1414b87a9
15d50856
hex9a8621

10126881 has 6 divisors (see below), whose sum is σ = 14627730. Its totient is φ = 6751248.

The previous prime is 10126871. The next prime is 10126889. The reversal of 10126881 is 18862101.

It can be written as a sum of positive squares in only one way, i.e., 5716881 + 4410000 = 2391^2 + 2100^2 .

It is not a de Polignac number, because 10126881 - 211 = 10124833 is a prime.

It is a super-2 number, since 2×101268812 = 205107437576322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10126889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 562596 + ... + 562613.

It is an arithmetic number, because the mean of its divisors is an integer number (2437955).

Almost surely, 210126881 is an apocalyptic number.

It is an amenable number.

10126881 is a deficient number, since it is larger than the sum of its proper divisors (4500849).

10126881 is a wasteful number, since it uses less digits than its factorization.

10126881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125215 (or 1125212 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 10126881 is about 3182.2760722477. The cubic root of 10126881 is about 216.3508316126.

Adding to 10126881 its reverse (18862101), we get a palindrome (28988982).

The spelling of 10126881 in words is "ten million, one hundred twenty-six thousand, eight hundred eighty-one".

Divisors: 1 3 9 1125209 3375627 10126881