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10024313221 = 13771101017
BaseRepresentation
bin10010101010111111…
…01110000110000101
3221212121111212121001
421111133232012011
5131012211010341
64334411453301
7503261153656
oct112537560605
927777455531
1010024313221
11428451098a
121b39157231
13c39a50bb0
146b149152d
153da0b1d31
hex2557ee185

10024313221 has 4 divisors (see below), whose sum is σ = 10795414252. Its totient is φ = 9253212192.

The previous prime is 10024313219. The next prime is 10024313249. The reversal of 10024313221 is 12231342001.

It is a happy number.

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 1665782596 + 8358530625 = 40814^2 + 91425^2 .

It is a cyclic number.

It is not a de Polignac number, because 10024313221 - 21 = 10024313219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10024313291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385550496 + ... + 385550521.

It is an arithmetic number, because the mean of its divisors is an integer number (2698853563).

Almost surely, 210024313221 is an apocalyptic number.

It is an amenable number.

10024313221 is a deficient number, since it is larger than the sum of its proper divisors (771101031).

10024313221 is an equidigital number, since it uses as much as digits as its factorization.

10024313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771101030.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10024313221 its reverse (12231342001), we get a palindrome (22255655222).

The spelling of 10024313221 in words is "ten billion, twenty-four million, three hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 13 771101017 10024313221