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9916812 = 2232475861
BaseRepresentation
bin100101110101…
…000110001100
3200122211022100
4211311012030
510014314222
6552315100
7150201663
oct45650614
920584270
109916812
115663714
1233a2a90
132092a49
141461dda
15d0d4ac
hex97518c

9916812 has 36 divisors (see below), whose sum is σ = 25605216. Its totient is φ = 3234720.

The previous prime is 9916787. The next prime is 9916813. The reversal of 9916812 is 2186199.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (9916813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1239 + ... + 4622.

It is an arithmetic number, because the mean of its divisors is an integer number (711256).

Almost surely, 29916812 is an apocalyptic number.

It is an amenable number.

9916812 is an abundant number, since it is smaller than the sum of its proper divisors (15688404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9916812 is a wasteful number, since it uses less digits than its factorization.

9916812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5918 (or 5913 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 9916812 is about 3149.0970134310. The cubic root of 9916812 is about 214.8443943487.

The spelling of 9916812 in words is "nine million, nine hundred sixteen thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 47 94 141 188 282 423 564 846 1692 5861 11722 17583 23444 35166 52749 70332 105498 210996 275467 550934 826401 1101868 1652802 2479203 3305604 4958406 9916812