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9942486693 = 310667310693
BaseRepresentation
bin10010100001001111…
…00100111010100101
3221122220112122200220
421100213210322211
5130330234033233
64322325554553
7501245512446
oct112047447245
927586478626
109942486693
114242302457
121b15875a59
13c25b01329
146a46712cd
153d2cebeb3
hex2509e4ea5

9942486693 has 8 divisors (see below), whose sum is σ = 13257934368. Its totient is φ = 6627681744.

The previous prime is 9942486689. The next prime is 9942486707. The reversal of 9942486693 is 3966842499.

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

It is not a de Polignac number, because 9942486693 - 22 = 9942486689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942486613) 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, 123346 + ... + 187347.

It is an arithmetic number, because the mean of its divisors is an integer number (1657241796).

Almost surely, 29942486693 is an apocalyptic number.

It is an amenable number.

9942486693 is a deficient number, since it is larger than the sum of its proper divisors (3315447675).

9942486693 is a wasteful number, since it uses less digits than its factorization.

9942486693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321363.

The product of its digits is 20155392, while the sum is 60.

The square root of 9942486693 is about 99712.0187991398. The cubic root of 9942486693 is about 2150.2964576241.

The spelling of 9942486693 in words is "nine billion, nine hundred forty-two million, four hundred eighty-six thousand, six hundred ninety-three".

Divisors: 1 3 10667 32001 310693 932079 3314162231 9942486693