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1992166 = 211831091
BaseRepresentation
bin111100110010111100110
310202012201221
413212113212
51002222131
6110410554
722635031
oct7462746
93665657
101992166
111140820
12800a5a
135499c7
1439c018
15295411
hex1e65e6

1992166 has 16 divisors (see below), whose sum is σ = 3302208. Its totient is φ = 893800.

The previous prime is 1992163. The next prime is 1992167. The reversal of 1992166 is 6612991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1281 + ... + 2371.

It is an arithmetic number, because the mean of its divisors is an integer number (206388).

21992166 is an apocalyptic number.

1992166 is a deficient number, since it is larger than the sum of its proper divisors (1310042).

1992166 is a wasteful number, since it uses less digits than its factorization.

1992166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187.

The product of its digits is 5832, while the sum is 34.

The square root of 1992166 is about 1411.4411075210. The cubic root of 1992166 is about 125.8273860421.

The spelling of 1992166 in words is "one million, nine hundred ninety-two thousand, one hundred sixty-six".

Divisors: 1 2 11 22 83 166 913 1091 1826 2182 12001 24002 90553 181106 996083 1992166