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10200234221 = 37972686393
BaseRepresentation
bin10010111111111101…
…10011100011101101
3222022212112120211122
421133332303203231
5131342224443341
64404054230325
7510525363122
oct113776634355
928285476748
1010200234221
114364847a41
121b880553a5
13c67327268
146ca9a6749
153ea76194b
hex25ffb38ed

10200234221 has 4 divisors (see below), whose sum is σ = 10202924412. Its totient is φ = 10197544032.

The previous prime is 10200234181. The next prime is 10200234223. The reversal of 10200234221 is 12243200201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2563396900 + 7636837321 = 50630^2 + 87389^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200234221 - 226 = 10133125357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10200234221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200234223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1339400 + ... + 1346993.

It is an arithmetic number, because the mean of its divisors is an integer number (2550731103).

Almost surely, 210200234221 is an apocalyptic number.

It is an amenable number.

10200234221 is a deficient number, since it is larger than the sum of its proper divisors (2690191).

10200234221 is an equidigital number, since it uses as much as digits as its factorization.

10200234221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690190.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 10200234221 its reverse (12243200201), we get a palindrome (22443434422).

The spelling of 10200234221 in words is "ten billion, two hundred million, two hundred thirty-four thousand, two hundred twenty-one".

Divisors: 1 3797 2686393 10200234221