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3023011220 = 225151150561
BaseRepresentation
bin1011010000101111…
…0111110110010100
321210200022212210112
42310023313312110
522142342324340
61215545342152
7134625112535
oct26413676624
97720285715
103023011220
111311458089
12704497958
133923b0448
142096b668c
1512a5dc065
hexb42f7d94

3023011220 has 12 divisors (see below), whose sum is σ = 6348323604. Its totient is φ = 1209204480.

The previous prime is 3023011219. The next prime is 3023011237. The reversal of 3023011220 is 221103203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1234397956 + 1788613264 = 35134^2 + 42292^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3023011195 and 3023011204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75575261 + ... + 75575300.

It is an arithmetic number, because the mean of its divisors is an integer number (529026967).

Almost surely, 23023011220 is an apocalyptic number.

It is an amenable number.

3023011220 is an abundant number, since it is smaller than the sum of its proper divisors (3325312384).

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

3023011220 is a wasteful number, since it uses less digits than its factorization.

3023011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151150570 (or 151150568 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3023011220 is about 54981.9172092062. The cubic root of 3023011220 is about 1445.9277288586.

Adding to 3023011220 its reverse (221103203), we get a palindrome (3244114423).

The spelling of 3023011220 in words is "three billion, twenty-three million, eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 151150561 302301122 604602244 755752805 1511505610 3023011220