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211225341 = 3371902931
BaseRepresentation
bin11001001011100…
…00101011111101
3112201110100200210
430211300223331
5413033202331
632543143033
75143246215
oct1445605375
9481410623
10211225341
11a925a7a8
125a8a4a79
13349b7812
14200a5245
1513825446
hexc970afd

211225341 has 8 divisors (see below), whose sum is σ = 289245664. Its totient is φ = 137010960.

The previous prime is 211225327. The next prime is 211225387. The reversal of 211225341 is 143522112.

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

It is not a de Polignac number, because 211225341 - 25 = 211225309 is a prime.

It is a super-2 number, since 2×2112253412 = 89232289361132562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211225321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951355 + ... + 951576.

It is an arithmetic number, because the mean of its divisors is an integer number (36155708).

Almost surely, 2211225341 is an apocalyptic number.

It is an amenable number.

211225341 is a deficient number, since it is larger than the sum of its proper divisors (78020323).

211225341 is a wasteful number, since it uses less digits than its factorization.

211225341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902971.

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

The square root of 211225341 is about 14533.5935336034. The cubic root of 211225341 is about 595.5460382981.

Adding to 211225341 its reverse (143522112), we get a palindrome (354747453).

The spelling of 211225341 in words is "two hundred eleven million, two hundred twenty-five thousand, three hundred forty-one".

Divisors: 1 3 37 111 1902931 5708793 70408447 211225341