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16683702031 = 42733904447
BaseRepresentation
bin11111000100110110…
…10001011100001111
31121001201022212200001
433202123101130033
5233132011431111
611355301345131
71130303061463
oct174233213417
947051285601
1016683702031
1170915732a7
1232974081a7
13175b60a249
14b43aa64a3
15679a491c1
hex3e26d170f

16683702031 has 4 divisors (see below), whose sum is σ = 16687610752. Its totient is φ = 16679793312.

The previous prime is 16683702019. The next prime is 16683702041. The reversal of 16683702031 is 13020738661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16683702031 - 211 = 16683699983 is a prime.

It is a super-2 number, since 2×166837020312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16683702041) 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 3 ways as a sum of consecutive naturals, for example, 1947951 + ... + 1956496.

It is an arithmetic number, because the mean of its divisors is an integer number (4171902688).

Almost surely, 216683702031 is an apocalyptic number.

16683702031 is a deficient number, since it is larger than the sum of its proper divisors (3908721).

16683702031 is an equidigital number, since it uses as much as digits as its factorization.

16683702031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908720.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 16683702031 in words is "sixteen billion, six hundred eighty-three million, seven hundred two thousand, thirty-one".

Divisors: 1 4273 3904447 16683702031