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166550004 = 22324626389
BaseRepresentation
bin10011110110101…
…01100111110100
3102121101121122200
421323111213310
5320114100004
624305424500
74061436345
oct1173254764
9377347580
10166550004
1186016535
124793b130
1328674bca
14181960cc
15e94d239
hex9ed59f4

166550004 has 18 divisors (see below), whose sum is σ = 421001490. Its totient is φ = 55516656.

The previous prime is 166549993. The next prime is 166550023. The reversal of 166550004 is 400055661.

It is a happy number.

166550004 is a `hidden beast` number, since 1 + 6 + 655 + 0 + 0 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 159516900 + 7033104 = 12630^2 + 2652^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 166550004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2313159 + ... + 2313230.

Almost surely, 2166550004 is an apocalyptic number.

It is an amenable number.

166550004 is an abundant number, since it is smaller than the sum of its proper divisors (254451486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166550004 is a wasteful number, since it uses less digits than its factorization.

166550004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4626399 (or 4626394 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 166550004 is about 12905.4253707501. The cubic root of 166550004 is about 550.1927742982.

The spelling of 166550004 in words is "one hundred sixty-six million, five hundred fifty thousand, four".

Divisors: 1 2 3 4 6 9 12 18 36 4626389 9252778 13879167 18505556 27758334 41637501 55516668 83275002 166550004