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153212223 = 3232220467
BaseRepresentation
bin10010010000111…
…01010100111111
3101200021222122210
421020131110333
5303210242343
623111511503
73540165603
oct1110352477
9350258583
10153212223
117953667a
1243388593
1325985028
14164c3503
15d6b6333
hex921d53f

153212223 has 8 divisors (see below), whose sum is σ = 213164928. Its totient is φ = 97700504.

The previous prime is 153212209. The next prime is 153212231. The reversal of 153212223 is 322212351.

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

It is not a de Polignac number, because 153212223 - 24 = 153212207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 153212223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153212243) 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, 1110165 + ... + 1110302.

It is an arithmetic number, because the mean of its divisors is an integer number (26645616).

Almost surely, 2153212223 is an apocalyptic number.

153212223 is a deficient number, since it is larger than the sum of its proper divisors (59952705).

153212223 is a wasteful number, since it uses less digits than its factorization.

153212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220493.

The product of its digits is 720, while the sum is 21.

The square root of 153212223 is about 12377.8925104397. The cubic root of 153212223 is about 535.0953019731.

Adding to 153212223 its reverse (322212351), we get a palindrome (475424574).

The spelling of 153212223 in words is "one hundred fifty-three million, two hundred twelve thousand, two hundred twenty-three".

Divisors: 1 3 23 69 2220467 6661401 51070741 153212223