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9749458423 = 17356355251
BaseRepresentation
bin10010001010001110…
…01110110111110111
3221011110022210200201
421011013032313313
5124431330132143
64251232421331
7463413013015
oct110507166767
927143283621
109749458423
114153351461
121a810a7847
13bc4b18413
14686b858b5
153c0dbd64d
hex2451cedf7

9749458423 has 4 divisors (see below), whose sum is σ = 9805813848. Its totient is φ = 9693103000.

The previous prime is 9749458421. The next prime is 9749458427. The reversal of 9749458423 is 3248549479.

9749458423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3248549479 = 7464078497.

It is a cyclic number.

It is not a de Polignac number, because 9749458423 - 21 = 9749458421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9749458421) 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, 28177453 + ... + 28177798.

It is an arithmetic number, because the mean of its divisors is an integer number (2451453462).

Almost surely, 29749458423 is an apocalyptic number.

9749458423 is a deficient number, since it is larger than the sum of its proper divisors (56355425).

9749458423 is a wasteful number, since it uses less digits than its factorization.

9749458423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56355424.

The product of its digits is 8709120, while the sum is 55.

The square root of 9749458423 is about 98739.3458708331. The cubic root of 9749458423 is about 2136.2897850111.

The spelling of 9749458423 in words is "nine billion, seven hundred forty-nine million, four hundred fifty-eight thousand, four hundred twenty-three".

Divisors: 1 173 56355251 9749458423