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3111222030 = 235720277309
BaseRepresentation
bin1011100101110001…
…0111101100001110
322000211022110021120
42321130113230032
522332433101110
61232420141410
7140045644110
oct27134275416
98024273246
103111222030
111357227184
12729b37866
133a7756ba7
142172b93b0
15133213870
hexb9717b0e

3111222030 has 64 divisors (see below), whose sum is σ = 8539015680. Its totient is φ = 710688384.

The previous prime is 3111222019. The next prime is 3111222053. The reversal of 3111222030 is 302221113.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 422016 + ... + 429324.

It is an arithmetic number, because the mean of its divisors is an integer number (133422120).

Almost surely, 23111222030 is an apocalyptic number.

3111222030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3111222030 is an abundant number, since it is smaller than the sum of its proper divisors (5427793650).

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

3111222030 is a wasteful number, since it uses less digits than its factorization.

3111222030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9353.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3111222030 is about 55778.3293941294. The cubic root of 3111222030 is about 1459.8570620682.

Adding to 3111222030 its reverse (302221113), we get a palindrome (3413443143).

The spelling of 3111222030 in words is "three billion, one hundred eleven million, two hundred twenty-two thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 2027 4054 6081 7309 10135 12162 14189 14618 20270 21927 28378 30405 36545 42567 43854 51163 60810 70945 73090 85134 102326 109635 141890 153489 212835 219270 255815 306978 425670 511630 767445 1534890 14815343 29630686 44446029 74076715 88892058 103707401 148153430 207414802 222230145 311122203 444460290 518537005 622244406 1037074010 1555611015 3111222030