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16692972 = 2231391081
BaseRepresentation
bin111111101011…
…011011101100
31011102002110020
4333223123230
513233133342
61353442140
7261613362
oct77533354
934362406
1016692972
11947174a
125710350
1335c60ca
142307632
1516eb0ec
hexfeb6ec

16692972 has 12 divisors (see below), whose sum is σ = 38950296. Its totient is φ = 5564320.

The previous prime is 16692967. The next prime is 16692979. The reversal of 16692972 is 27929661.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (16692979) 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 3 ways as a sum of consecutive naturals, for example, 695529 + ... + 695552.

It is an arithmetic number, because the mean of its divisors is an integer number (3245858).

Almost surely, 216692972 is an apocalyptic number.

16692972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16692972 is an abundant number, since it is smaller than the sum of its proper divisors (22257324).

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

16692972 is a wasteful number, since it uses less digits than its factorization.

16692972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391088 (or 1391086 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 16692972 is about 4085.7033666188. The cubic root of 16692972 is about 255.5707936583.

The spelling of 16692972 in words is "sixteen million, six hundred ninety-two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 1391081 2782162 4173243 5564324 8346486 16692972