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9984424931 = 131947860059
BaseRepresentation
bin10010100110001111…
…00011101111100011
3221202211110100010222
421103013203233203
5130422003044211
64330424513255
7502265132405
oct112307435743
927684410128
109984424931
114263a47258
121b2791b82b
13c316c6160
146aa06ab75
153d68331db
hex2531e3be3

9984424931 has 16 divisors (see below), whose sum is σ = 11559206400. Its totient is φ = 8545536288.

The previous prime is 9984424907. The next prime is 9984424937. The reversal of 9984424931 is 1394244899.

It is a cyclic number.

It is not a de Polignac number, because 9984424931 - 214 = 9984408547 is a prime.

It is a super-2 number, since 2×99844249312 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9984424937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418421 + ... + 441638.

It is an arithmetic number, because the mean of its divisors is an integer number (722450400).

Almost surely, 29984424931 is an apocalyptic number.

9984424931 is a deficient number, since it is larger than the sum of its proper divisors (1574781469).

9984424931 is a wasteful number, since it uses less digits than its factorization.

9984424931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860138.

The product of its digits is 2239488, while the sum is 53.

The square root of 9984424931 is about 99922.0943085162. The cubic root of 9984424931 is about 2153.3155931985.

The spelling of 9984424931 in words is "nine billion, nine hundred eighty-four million, four hundred twenty-four thousand, nine hundred thirty-one".

Divisors: 1 13 19 47 247 611 893 11609 860059 11180767 16341121 40422773 212434573 525496049 768032687 9984424931