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166414143 = 3724212689
BaseRepresentation
bin10011110101101…
…00011100111111
3102121010201021210
421322310130333
5320100223033
624302455503
74060332300
oct1172643477
9377121253
10166414143
1185a33455
1247894593
132862810c
141815c7a7
15e922d63
hex9eb473f

166414143 has 24 divisors (see below), whose sum is σ = 258821040. Its totient is φ = 94832640.

The previous prime is 166414111. The next prime is 166414153. The reversal of 166414143 is 341414661.

It is not a de Polignac number, because 166414143 - 25 = 166414111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166414143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166414153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60543 + ... + 63231.

It is an arithmetic number, because the mean of its divisors is an integer number (10784210).

Almost surely, 2166414143 is an apocalyptic number.

166414143 is a deficient number, since it is larger than the sum of its proper divisors (92406897).

166414143 is a wasteful number, since it uses less digits than its factorization.

166414143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127 (or 3120 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 166414143 is about 12900.1605803959. The cubic root of 166414143 is about 550.0431294002.

The spelling of 166414143 in words is "one hundred sixty-six million, four hundred fourteen thousand, one hundred forty-three".

Divisors: 1 3 7 21 49 147 421 1263 2689 2947 8067 8841 18823 20629 56469 61887 131761 395283 1132069 3396207 7924483 23773449 55471381 166414143