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222012152 = 2331388663
BaseRepresentation
bin11010011101110…
…10001011111000
3120110202101102022
431032322023320
5423313342102
634010254012
75334033515
oct1516721370
9513671368
10222012152
1110435801a
1262427308
1336cc354b
14216b230c
15147565a2
hexd3ba2f8

222012152 has 16 divisors (see below), whose sum is σ = 417607440. Its totient is φ = 110650176.

The previous prime is 222012151. The next prime is 222012157. The reversal of 222012152 is 251210222.

222012152 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2220121522 = 98578791271342208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222012152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012151) 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, 41828 + ... + 46835.

It is an arithmetic number, because the mean of its divisors is an integer number (26100465).

Almost surely, 2222012152 is an apocalyptic number.

It is an amenable number.

222012152 is a deficient number, since it is larger than the sum of its proper divisors (195595288).

222012152 is a wasteful number, since it uses less digits than its factorization.

222012152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88982 (or 88978 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 222012152 is about 14900.0722145901. The cubic root of 222012152 is about 605.5159426409.

Adding to 222012152 its reverse (251210222), we get a palindrome (473222374).

The spelling of 222012152 in words is "two hundred twenty-two million, twelve thousand, one hundred fifty-two".

Divisors: 1 2 4 8 313 626 1252 2504 88663 177326 354652 709304 27751519 55503038 111006076 222012152