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5249397729 = 31992094697
BaseRepresentation
bin1001110001110001…
…10111001111100001
3111112211200000221010
410320320313033201
541222321211404
62224520451133
7244041100362
oct47070671741
914484600833
105249397729
11225416a234
121026019aa9
13658720104
1437b261b69
1520acbc189
hex138e373e1

5249397729 has 8 divisors (see below), whose sum is σ = 7367575840. Its totient is φ = 3315409056.

The previous prime is 5249397623. The next prime is 5249397739. The reversal of 5249397729 is 9277939425.

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

It is not a de Polignac number, because 5249397729 - 223 = 5241009121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 92094697 = 5249397729 / (5 + 2 + 4 + 9 + 3 + 9 + 7 + 7 + 2 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5249397739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46047292 + ... + 46047405.

It is an arithmetic number, because the mean of its divisors is an integer number (920946980).

Almost surely, 25249397729 is an apocalyptic number.

It is an amenable number.

5249397729 is a deficient number, since it is larger than the sum of its proper divisors (2118178111).

5249397729 is a wasteful number, since it uses less digits than its factorization.

5249397729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92094719.

The product of its digits is 8573040, while the sum is 57.

The square root of 5249397729 is about 72452.7275470013. The cubic root of 5249397729 is about 1737.9468592653.

The spelling of 5249397729 in words is "five billion, two hundred forty-nine million, three hundred ninety-seven thousand, seven hundred twenty-nine".

Divisors: 1 3 19 57 92094697 276284091 1749799243 5249397729