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5020712261 = 291049165041
BaseRepresentation
bin1001010110100000…
…11111110101000101
3110221220100121102222
410223100133311011
540240300243021
62150111142125
7235263231035
oct45320376505
913856317388
105020712261
112147074484
12b81514945
13620231276
14358b338c5
151e5b986ab
hex12b41fd45

5020712261 has 8 divisors (see below), whose sum is σ = 5198823000. Its totient is φ = 4842933760.

The previous prime is 5020712243. The next prime is 5020712269. The reversal of 5020712261 is 1622170205.

It can be written as a sum of positive squares in 4 ways, for example, as 2881649761 + 2139062500 = 53681^2 + 46250^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5020712261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5020712261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5020712269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52100 + ... + 112941.

It is an arithmetic number, because the mean of its divisors is an integer number (649852875).

Almost surely, 25020712261 is an apocalyptic number.

It is an amenable number.

5020712261 is a deficient number, since it is larger than the sum of its proper divisors (178110739).

5020712261 is a wasteful number, since it uses less digits than its factorization.

5020712261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166119.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 5020712261 is about 70856.9845604511. The cubic root of 5020712261 is about 1712.3338583629. Note that the first 3 decimals are identical.

Adding to 5020712261 its reverse (1622170205), we get a palindrome (6642882466).

The spelling of 5020712261 in words is "five billion, twenty million, seven hundred twelve thousand, two hundred sixty-one".

Divisors: 1 29 1049 30421 165041 4786189 173128009 5020712261