Search a number
-
+
9849130397 = 53185832649
BaseRepresentation
bin10010010110000110…
…11100110110011101
3221102101212122221022
421023003130312131
5130132334133042
64305153013525
7466033140611
oct111303346635
927371778838
109849130397
1141a4639497
121aaa5542a5
13c0c675812
146960cd341
153c9a0acd2
hex24b0dcd9d

9849130397 has 4 divisors (see below), whose sum is σ = 10034963100. Its totient is φ = 9663297696.

The previous prime is 9849130393. The next prime is 9849130399. The reversal of 9849130397 is 7930319489.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7930319489 = 79100383791.

It can be written as a sum of positive squares in 2 ways, for example, as 9092385316 + 756745081 = 95354^2 + 27509^2 .

It is a cyclic number.

It is not a de Polignac number, because 9849130397 - 22 = 9849130393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 185832649 = 9849130397 / (9 + 8 + 4 + 9 + 1 + 3 + 0 + 3 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9849130393) 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, 92916272 + ... + 92916377.

It is an arithmetic number, because the mean of its divisors is an integer number (2508740775).

Almost surely, 29849130397 is an apocalyptic number.

9849130397 is the 53048-th centered heptagonal number.

It is an amenable number.

9849130397 is a deficient number, since it is larger than the sum of its proper divisors (185832703).

9849130397 is a wasteful number, since it uses less digits than its factorization.

9849130397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185832702.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 9849130397 is about 99242.7851130751. The cubic root of 9849130397 is about 2143.5451179706.

The spelling of 9849130397 in words is "nine billion, eight hundred forty-nine million, one hundred thirty thousand, three hundred ninety-seven".

Divisors: 1 53 185832649 9849130397