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3001122220 = 225435696133
BaseRepresentation
bin1011001011100001…
…0111110110101100
321202011010210201211
42302320113312230
522121241402340
61213444244204
7134241055315
oct26270276654
97664123654
103001122220
1113000675a8
126b90a0664
1338a9b8285
1420681960c
151287165ea
hexb2e17dac

3001122220 has 48 divisors (see below), whose sum is σ = 6461310240. Its totient is φ = 1170279936.

The previous prime is 3001122211. The next prime is 3001122233. The reversal of 3001122220 is 222211003.

It is a self number, because there is not a number n which added to its sum of digits gives 3001122220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486274 + ... + 492406.

It is an arithmetic number, because the mean of its divisors is an integer number (134610630).

Almost surely, 23001122220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3001122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3230655120).

3001122220 is an abundant number, since it is smaller than the sum of its proper divisors (3460188020).

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

3001122220 is a wasteful number, since it uses less digits than its factorization.

3001122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6754 (or 6752 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 3001122220 is about 54782.4992127961. The cubic root of 3001122220 is about 1442.4293835896.

Adding to 3001122220 its reverse (222211003), we get a palindrome (3223333223).

The spelling of 3001122220 in words is "three billion, one million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 569 860 1138 2276 2845 5690 6133 11380 12266 24467 24532 30665 48934 61330 97868 122335 122660 244670 263719 489340 527438 1054876 1318595 2637190 3489677 5274380 6979354 13958708 17448385 34896770 69793540 150056111 300112222 600224444 750280555 1500561110 3001122220