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9742749706 = 220747234799
BaseRepresentation
bin10010001001011011…
…01001000000001010
3221010222200222001201
421010231221000022
5124423120442311
64250432534414
7463302002044
oct110455510012
927128628051
109742749706
11414a58a068
121a7a9b140a
13bc3609971
14685d1aa94
153c04e59c1
hex244b6900a

9742749706 has 8 divisors (see below), whose sum is σ = 14614891200. Its totient is φ = 4871119308.

The previous prime is 9742749703. The next prime is 9742749707. The reversal of 9742749706 is 6079472479.

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

It is not an unprimeable number, because it can be changed into a prime (9742749703) 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, 75906 + ... + 158893.

It is an arithmetic number, because the mean of its divisors is an integer number (1826861400).

Almost surely, 29742749706 is an apocalyptic number.

9742749706 is a deficient number, since it is larger than the sum of its proper divisors (4872141494).

9742749706 is a wasteful number, since it uses less digits than its factorization.

9742749706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255548.

The product of its (nonzero) digits is 5334336, while the sum is 55.

The square root of 9742749706 is about 98705.3681721516. The cubic root of 9742749706 is about 2135.7996705343.

The spelling of 9742749706 in words is "nine billion, seven hundred forty-two million, seven hundred forty-nine thousand, seven hundred six".

Divisors: 1 2 20747 41494 234799 469598 4871374853 9742749706