Search a number
-
+
3123102220 = 2257229109891
BaseRepresentation
bin1011101000100110…
…1100001000001100
322001122200000211121
42322021230020030
522344003232340
61233522530324
7140251634200
oct27211541014
98048600747
103123102220
111362a00a17
12731b069a4
133aa0564a4
14218accb00
151342ad94a
hexba26c20c

3123102220 has 72 divisors (see below), whose sum is σ = 7892443440. Its totient is φ = 1033845120.

The previous prime is 3123102193. The next prime is 3123102239. The reversal of 3123102220 is 222013213.

It is a junction number, because it is equal to n+sod(n) for n = 3123102194 and 3123102203.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 26526 + ... + 83365.

It is an arithmetic number, because the mean of its divisors is an integer number (109617270).

Almost surely, 23123102220 is an apocalyptic number.

It is an amenable number.

3123102220 is an abundant number, since it is smaller than the sum of its proper divisors (4769341220).

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

3123102220 is a wasteful number, since it uses less digits than its factorization.

3123102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109943 (or 109934 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3123102220 is about 55884.7225992936. The cubic root of 3123102220 is about 1461.7128549158.

Adding to 3123102220 its reverse (222013213), we get a palindrome (3345115433).

The spelling of 3123102220 in words is "three billion, one hundred twenty-three million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 29 35 49 58 70 98 116 140 145 196 203 245 290 406 490 580 812 980 1015 1421 2030 2842 4060 5684 7105 14210 28420 109891 219782 439564 549455 769237 1098910 1538474 2197820 3076948 3186839 3846185 5384659 6373678 7692370 10769318 12747356 15384740 15934195 21538636 22307873 26923295 31868390 44615746 53846590 63736780 89231492 107693180 111539365 156155111 223078730 312310222 446157460 624620444 780775555 1561551110 3123102220