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99799966 = 2752969
BaseRepresentation
bin1011111001011…
…01001110011110
320221210100211001
411330231032132
5201022044331
613523020514
72321200000
oct574551636
9227710731
1099799966
1151375212
122950a73a
13178a3746
14d37c370
158b65561
hex5f2d39e

99799966 has 24 divisors (see below), whose sum is σ = 174707280. Its totient is φ = 42757008.

The previous prime is 99799963. The next prime is 99799981. The reversal of 99799966 is 66999799.

It is a junction number, because it is equal to n+sod(n) for n = 99799898 and 99799907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99799963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32130 + ... + 35098.

It is an arithmetic number, because the mean of its divisors is an integer number (7279470).

Almost surely, 299799966 is an apocalyptic number.

99799966 is a deficient number, since it is larger than the sum of its proper divisors (74907314).

99799966 is an frugal number, since it uses more digits than its factorization.

99799966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006 (or 2978 counting only the distinct ones).

The product of its digits is 14880348, while the sum is 64.

The square root of 99799966 is about 9989.9932932910. The cubic root of 99799966 is about 463.8491849084.

The spelling of 99799966 in words is "ninety-nine million, seven hundred ninety-nine thousand, nine hundred sixty-six".

Divisors: 1 2 7 14 49 98 343 686 2401 2969 4802 5938 16807 20783 33614 41566 145481 290962 1018367 2036734 7128569 14257138 49899983 99799966