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BaseRepresentation
bin101011111010…
…0011010010001
31121022121011002
41113310122101
521343134301
62141231345
7366451130
oct127643221
947277132
1023021201
1111aa4195
127862555
134a00618
1430b3917
15204b16b
hex15f4691

23021201 has 8 divisors (see below), whose sum is σ = 26405184. Its totient is φ = 19661040.

The previous prime is 23021177. The next prime is 23021203. The reversal of 23021201 is 10212032.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-23021201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23021203) 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 7 ways as a sum of consecutive naturals, for example, 3830 + ... + 7791.

It is an arithmetic number, because the mean of its divisors is an integer number (3300648).

Almost surely, 223021201 is an apocalyptic number.

It is an amenable number.

23021201 is a deficient number, since it is larger than the sum of its proper divisors (3383983).

23021201 is a wasteful number, since it uses less digits than its factorization.

23021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11911.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 23021201 is about 4798.0413712264. The cubic root of 23021201 is about 284.4740520543.

Adding to 23021201 its reverse (10212032), we get a palindrome (33233233).

It can be divided in two parts, 2 and 3021201, that added together give a palindrome (3021203).

The spelling of 23021201 in words is "twenty-three million, twenty-one thousand, two hundred one".

Divisors: 1 7 283 1981 11621 81347 3288743 23021201