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164140183 = 1959146423
BaseRepresentation
bin10011100100010…
…01010010010111
3102102212012000001
421302021102113
5314004441213
624142032131
74032111544
oct1162112227
9372765001
10164140183
118471aa49
1246b78647
132801008c
1417b29bcb
15e6241dd
hex9c89497

164140183 has 8 divisors (see below), whose sum is σ = 175708800. Its totient is φ = 152864568.

The previous prime is 164140169. The next prime is 164140187. The reversal of 164140183 is 381041461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164140183 - 29 = 164139671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164140187) 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, 72091 + ... + 74332.

It is an arithmetic number, because the mean of its divisors is an integer number (21963600).

Almost surely, 2164140183 is an apocalyptic number.

164140183 is a deficient number, since it is larger than the sum of its proper divisors (11568617).

164140183 is a wasteful number, since it uses less digits than its factorization.

164140183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146501.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 164140183 is about 12811.7205323875. The cubic root of 164140183 is about 547.5262824549.

The spelling of 164140183 in words is "one hundred sixty-four million, one hundred forty thousand, one hundred eighty-three".

Divisors: 1 19 59 1121 146423 2782037 8638957 164140183