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222102030 = 235231013187
BaseRepresentation
bin11010011110100…
…00001000001110
3120110220221201010
431033100020032
5423324231110
634012230050
75334556533
oct1517201016
9513827633
10222102030
111044095a7
126246b326
1337025427
14216d6d8a
1514773020
hexd3d020e

222102030 has 64 divisors (see below), whose sum is σ = 561904128. Its totient is φ = 56073600.

The previous prime is 222101977. The next prime is 222102031. The reversal of 222102030 is 30201222.

222102030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222101997 and 222102015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68097 + ... + 71283.

It is an arithmetic number, because the mean of its divisors is an integer number (8779752).

Almost surely, 2222102030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222102030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280952064).

222102030 is an abundant number, since it is smaller than the sum of its proper divisors (339802098).

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

222102030 is a wasteful number, since it uses less digits than its factorization.

222102030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 222102030 is about 14903.0879350556. The cubic root of 222102030 is about 605.5976427026.

Adding to 222102030 its reverse (30201222), we get a palindrome (252303252).

The spelling of 222102030 in words is "two hundred twenty-two million, one hundred two thousand, thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 101 115 138 202 230 303 345 505 606 690 1010 1515 2323 3030 3187 4646 6374 6969 9561 11615 13938 15935 19122 23230 31870 34845 47805 69690 73301 95610 146602 219903 321887 366505 439806 643774 733010 965661 1099515 1609435 1931322 2199030 3218870 4828305 7403401 9656610 14806802 22210203 37017005 44420406 74034010 111051015 222102030