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12522153203 = 72675217321
BaseRepresentation
bin10111010100110000…
…01110010011110011
31012022200122021212222
423222120032103303
5201121132400303
65430321111255
7622211355200
oct135230162363
935280567788
1012522153203
11534647a04a
12251578852b
1312473a5111
1486b0dcca7
154d4512938
hex2ea60e4f3

12522153203 has 24 divisors (see below), whose sum is σ = 14814397584. Its totient is φ = 10551340800.

The previous prime is 12522153191. The next prime is 12522153229. The reversal of 12522153203 is 30235122521.

It is a happy number.

It is not a de Polignac number, because 12522153203 - 28 = 12522152947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12522153283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1706783 + ... + 1714103.

It is an arithmetic number, because the mean of its divisors is an integer number (617266566).

Almost surely, 212522153203 is an apocalyptic number.

12522153203 is a deficient number, since it is larger than the sum of its proper divisors (2292244381).

12522153203 is an equidigital number, since it uses as much as digits as its factorization.

12522153203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7923 (or 7916 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 12522153203 its reverse (30235122521), we get a palindrome (42757275724).

The spelling of 12522153203 in words is "twelve billion, five hundred twenty-two million, one hundred fifty-three thousand, two hundred three".

Divisors: 1 7 49 67 469 521 3283 3647 7321 25529 34907 51247 244349 358729 490507 1710443 3433549 3814241 24034843 26699687 186897809 255554147 1788879029 12522153203