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3113023220 = 225155651161
BaseRepresentation
bin1011100110001100…
…1111011011110100
322000221200222001022
42321203033123310
522333413220340
61232522520312
7140100155306
oct27143173364
98027628038
103113023220
11135824746a
1272a666098
133a7c37998
14217627976
1513346c3b5
hexb98cf6f4

3113023220 has 12 divisors (see below), whose sum is σ = 6537348804. Its totient is φ = 1245209280.

The previous prime is 3113023171. The next prime is 3113023223. The reversal of 3113023220 is 223203113.

It can be written as a sum of positive squares in 2 ways, for example, as 2238993124 + 874030096 = 47318^2 + 29564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3113023223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77825561 + ... + 77825600.

It is an arithmetic number, because the mean of its divisors is an integer number (544779067).

Almost surely, 23113023220 is an apocalyptic number.

It is an amenable number.

3113023220 is an abundant number, since it is smaller than the sum of its proper divisors (3424325584).

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

3113023220 is a wasteful number, since it uses less digits than its factorization.

3113023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155651170 (or 155651168 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3113023220 is about 55794.4730237682. The cubic root of 3113023220 is about 1460.1387276698.

Adding to 3113023220 its reverse (223203113), we get a palindrome (3336226333).

The spelling of 3113023220 in words is "three billion, one hundred thirteen million, twenty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 155651161 311302322 622604644 778255805 1556511610 3113023220