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10091201 = 97104033
BaseRepresentation
bin100110011111…
…101011000001
3200222200112012
4212133223001
510040404301
61000142305
7151526261
oct46375301
920880465
1010091201
11577273a
123467995
132124233
1414a97a1
15d44ebb
hex99fac1

10091201 has 4 divisors (see below), whose sum is σ = 10195332. Its totient is φ = 9987072.

The previous prime is 10091177. The next prime is 10091203. The reversal of 10091201 is 10219001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10219001 = 13786077.

It can be written as a sum of positive squares in 2 ways, for example, as 4326400 + 5764801 = 2080^2 + 2401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10091201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10091203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51920 + ... + 52113.

It is an arithmetic number, because the mean of its divisors is an integer number (2548833).

Almost surely, 210091201 is an apocalyptic number.

It is an amenable number.

10091201 is a deficient number, since it is larger than the sum of its proper divisors (104131).

10091201 is an equidigital number, since it uses as much as digits as its factorization.

10091201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104130.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 10091201 is about 3176.6650752007. The cubic root of 10091201 is about 216.0964432717.

The spelling of 10091201 in words is "ten million, ninety-one thousand, two hundred one".

Divisors: 1 97 104033 10091201