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99118749 = 3319971069
BaseRepresentation
bin1011110100001…
…10111010011101
320220111202100210
411322012322131
5200333244444
613500243033
72312331642
oct572067235
9226452323
1099118749
1150a4a424
1229240479
13176c5662
14d241dc9
158a7d7b9
hex5e86e9d

99118749 has 16 divisors (see below), whose sum is σ = 136686080. Its totient is φ = 63823680.

The previous prime is 99118703. The next prime is 99118751. The reversal of 99118749 is 94781199.

It is not a de Polignac number, because 99118749 - 28 = 99118493 is a prime.

It is a Smith number, since the sum of its digits (48) 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 a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 99118698 and 99118707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99118249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92187 + ... + 93255.

It is an arithmetic number, because the mean of its divisors is an integer number (8542880).

Almost surely, 299118749 is an apocalyptic number.

It is an amenable number.

99118749 is a deficient number, since it is larger than the sum of its proper divisors (37567331).

99118749 is a wasteful number, since it uses less digits than its factorization.

99118749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100.

The product of its digits is 163296, while the sum is 48.

The square root of 99118749 is about 9955.8399444748. The cubic root of 99118749 is about 462.7913901769.

The spelling of 99118749 in words is "ninety-nine million, one hundred eighteen thousand, seven hundred forty-nine".

Divisors: 1 3 31 93 997 1069 2991 3207 30907 33139 92721 99417 1065793 3197379 33039583 99118749