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166040474 = 2541153457
BaseRepresentation
bin10011110010110…
…01001110011010
3102120102201201012
421321121032122
5320001243344
624250453522
74054215005
oct1171311632
9376381635
10166040474
11857a8736
12477342a2
1328527002
14180a253c
15e89c29e
hex9e5939a

166040474 has 8 divisors (see below), whose sum is σ = 249522708. Its totient is φ = 82866240.

The previous prime is 166040443. The next prime is 166040489. The reversal of 166040474 is 474040661.

166040474 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 153388225 + 12652249 = 12385^2 + 3557^2 .

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

It is a super-2 number, since 2×1660404742 = 55138878012289352, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166040474.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75647 + ... + 77810.

Almost surely, 2166040474 is an apocalyptic number.

166040474 is a deficient number, since it is larger than the sum of its proper divisors (83482234).

166040474 is a wasteful number, since it uses less digits than its factorization.

166040474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154000.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 166040474 is about 12885.6693268142. The cubic root of 166040474 is about 549.6311289714.

The spelling of 166040474 in words is "one hundred sixty-six million, forty thousand, four hundred seventy-four".

Divisors: 1 2 541 1082 153457 306914 83020237 166040474