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212411253 = 370803751
BaseRepresentation
bin11001010100100…
…10001101110101
3112210200121110110
430222102031311
5413334130003
633024413233
75156315535
oct1452221565
9483617413
10212411253
11a999a79a
125b177219
1335011542
14202d34c5
15139aba03
hexca92375

212411253 has 4 divisors (see below), whose sum is σ = 283215008. Its totient is φ = 141607500.

The previous prime is 212411249. The next prime is 212411257. The reversal of 212411253 is 352114212.

212411253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (212411249) and next prime (212411257).

It is not a de Polignac number, because 212411253 - 22 = 212411249 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 (212411257) 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, 35401873 + ... + 35401878.

It is an arithmetic number, because the mean of its divisors is an integer number (70803752).

Almost surely, 2212411253 is an apocalyptic number.

It is an amenable number.

212411253 is a deficient number, since it is larger than the sum of its proper divisors (70803755).

212411253 is an equidigital number, since it uses as much as digits as its factorization.

212411253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70803754.

The product of its digits is 480, while the sum is 21.

The square root of 212411253 is about 14574.3354222414. The cubic root of 212411253 is about 596.6585114137.

Adding to 212411253 its reverse (352114212), we get a palindrome (564525465).

The spelling of 212411253 in words is "two hundred twelve million, four hundred eleven thousand, two hundred fifty-three".

Divisors: 1 3 70803751 212411253