Search a number
-
+
3051001220 = 225178973533
BaseRepresentation
bin1011010111011010…
…1001010110000100
321212121222220212012
42311312221112010
522222024014340
61222425313352
7135415040201
oct26566512604
97777886765
103051001220
111326235413
12711935858
13398130587
1420d2c0ca8
1512ccba565
hexb5da9584

3051001220 has 24 divisors (see below), whose sum is σ = 6783991704. Its totient is φ = 1148612096.

The previous prime is 3051001207. The next prime is 3051001259. The reversal of 3051001220 is 221001503.

It is a happy number.

3051001220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 174609796 + 2876391424 = 13214^2 + 53632^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3051001195 and 3051001204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4486427 + ... + 4487106.

It is an arithmetic number, because the mean of its divisors is an integer number (282666321).

Almost surely, 23051001220 is an apocalyptic number.

It is an amenable number.

3051001220 is an abundant number, since it is smaller than the sum of its proper divisors (3732990484).

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

3051001220 is a wasteful number, since it uses less digits than its factorization.

3051001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8973559 (or 8973557 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 3051001220 is about 55235.8689621156. The cubic root of 3051001220 is about 1450.3766314536.

Adding to 3051001220 its reverse (221001503), we get a palindrome (3272002723).

The spelling of 3051001220 in words is "three billion, fifty-one million, one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 8973533 17947066 35894132 44867665 89735330 152550061 179470660 305100122 610200244 762750305 1525500610 3051001220