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153222220 = 2257661111
BaseRepresentation
bin10010010000111…
…11110001001100
3101200022111101001
421020133301030
5303211102340
623112030044
73540240004
oct1110376114
9350274331
10153222220
1179543138
1243392324
1325989748
14164c7004
15d6b929a
hex921fc4c

153222220 has 12 divisors (see below), whose sum is σ = 321766704. Its totient is φ = 61288880.

The previous prime is 153222211. The next prime is 153222221. The reversal of 153222220 is 22222351.

It is not an unprimeable number, because it can be changed into a prime (153222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3830536 + ... + 3830575.

It is an arithmetic number, because the mean of its divisors is an integer number (26813892).

Almost surely, 2153222220 is an apocalyptic number.

153222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153222220 is an abundant number, since it is smaller than the sum of its proper divisors (168544484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153222220 is a wasteful number, since it uses less digits than its factorization.

153222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7661120 (or 7661118 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 153222220 is about 12378.2963286552. The cubic root of 153222220 is about 535.1069399293.

Adding to 153222220 its reverse (22222351), we get a palindrome (175444571).

The spelling of 153222220 in words is "one hundred fifty-three million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 7661111 15322222 30644444 38305555 76611110 153222220