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222630141 = 374210047
BaseRepresentation
bin11010100010100…
…01000011111101
3120111220210010210
431101101003331
5423443131031
634031423033
75342216316
oct1521210375
9514823123
10222630141
1110473a358
1262684a79
133717b916
14217d360d
1514829746
hexd4510fd

222630141 has 4 divisors (see below), whose sum is σ = 296840192. Its totient is φ = 148420092.

The previous prime is 222630139. The next prime is 222630143. The reversal of 222630141 is 141036222.

222630141 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 (222630139) and next prime (222630143).

It is not a de Polignac number, because 222630141 - 21 = 222630139 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 (222630143) 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, 37105021 + ... + 37105026.

It is an arithmetic number, because the mean of its divisors is an integer number (74210048).

Almost surely, 2222630141 is an apocalyptic number.

It is an amenable number.

222630141 is a deficient number, since it is larger than the sum of its proper divisors (74210051).

222630141 is an equidigital number, since it uses as much as digits as its factorization.

222630141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74210050.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 222630141 is about 14920.7955887077. The cubic root of 222630141 is about 606.0772565405.

Adding to 222630141 its reverse (141036222), we get a palindrome (363666363).

The spelling of 222630141 in words is "two hundred twenty-two million, six hundred thirty thousand, one hundred forty-one".

Divisors: 1 3 74210047 222630141