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10900001 = 721811229
BaseRepresentation
bin101001100101…
…001000100001
3202111202222202
4221211020201
510242300001
61025342545
7161435300
oct51451041
922452882
1010900001
116175372
123797a55
132348408
14163a437
15e5496b
hexa65221

10900001 has 12 divisors (see below), whose sum is σ = 12760020. Its totient is φ = 9283680.

The previous prime is 10899989. The next prime is 10900007. The reversal of 10900001 is 10000901.

It can be written as a sum of positive squares in 2 ways, for example, as 5400976 + 5499025 = 2324^2 + 2345^2 .

It is not a de Polignac number, because 10900001 - 26 = 10899937 is a prime.

It is a Curzon number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10900007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8255 + ... + 9483.

It is an arithmetic number, because the mean of its divisors is an integer number (1063335).

Almost surely, 210900001 is an apocalyptic number.

It is an amenable number.

10900001 is a deficient number, since it is larger than the sum of its proper divisors (1860019).

10900001 is a wasteful number, since it uses less digits than its factorization.

10900001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424 (or 1417 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 10900001 is about 3301.5149552895. The cubic root of 10900001 is about 221.7220298772.

Adding to 10900001 its reverse (10000901), we get a palindrome (20900902).

The spelling of 10900001 in words is "ten million, nine hundred thousand, one".

Divisors: 1 7 49 181 1229 1267 8603 8869 60221 222449 1557143 10900001