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5138920829 = 72099349753
BaseRepresentation
bin1001100100100110…
…11011010101111101
3111021010210020010002
410302103123111331
541011030431304
62205532524045
7241230051320
oct46223332575
914233706102
105138920829
1121a7872309
12bb5020625
1363b87b973
1436a7047b7
1520124831e
hex1324db57d

5138920829 has 8 divisors (see below), whose sum is σ = 5875867200. Its totient is φ = 4402678176.

The previous prime is 5138920807. The next prime is 5138920859. The reversal of 5138920829 is 9280298315.

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-5138920829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5138920859) 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 7 ways as a sum of consecutive naturals, for example, 160184 + ... + 189569.

It is an arithmetic number, because the mean of its divisors is an integer number (734483400).

Almost surely, 25138920829 is an apocalyptic number.

It is an amenable number.

5138920829 is a deficient number, since it is larger than the sum of its proper divisors (736946371).

5138920829 is a wasteful number, since it uses less digits than its factorization.

5138920829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351859.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 5138920829 is about 71686.2666694256. The cubic root of 5138920829 is about 1725.6682509565.

The spelling of 5138920829 in words is "five billion, one hundred thirty-eight million, nine hundred twenty thousand, eight hundred twenty-nine".

Divisors: 1 7 2099 14693 349753 2448271 734131547 5138920829