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5144012420 = 225257200621
BaseRepresentation
bin1001100101001101…
…10110011010000100
3111021111100220110112
410302212312122010
541013331344140
62210234012152
7241321245521
oct46246663204
914244326415
105144012420
1121aa72a738
12bb6877058
1363c942341
1436b26c148
15201901c65
hex1329b6684

5144012420 has 12 divisors (see below), whose sum is σ = 10802426124. Its totient is φ = 2057604960.

The previous prime is 5144012417. The next prime is 5144012429. The reversal of 5144012420 is 242104415.

It can be written as a sum of positive squares in 2 ways, for example, as 2507806084 + 2636206336 = 50078^2 + 51344^2 .

It is a super-2 number, since 2×51440124202 = 52921727554228512800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5144012429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128600291 + ... + 128600330.

It is an arithmetic number, because the mean of its divisors is an integer number (900202177).

Almost surely, 25144012420 is an apocalyptic number.

It is an amenable number.

5144012420 is an abundant number, since it is smaller than the sum of its proper divisors (5658413704).

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

5144012420 is a wasteful number, since it uses less digits than its factorization.

5144012420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257200630 (or 257200628 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 5144012420 is about 71721.7708928049. The cubic root of 5144012420 is about 1726.2379877423.

Adding to 5144012420 its reverse (242104415), we get a palindrome (5386116835).

The spelling of 5144012420 in words is "five billion, one hundred forty-four million, twelve thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 257200621 514401242 1028802484 1286003105 2572006210 5144012420