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189024669 = 32151139091
BaseRepresentation
bin10110100010001…
…00100110011101
3111011200110002200
423101010212131
5341342242134
630431242113
74453453221
oct1321044635
9434613080
10189024669
1197777039
1253379339
1330213822
141b166781
15118dc499
hexb44499d

189024669 has 12 divisors (see below), whose sum is σ = 274845792. Its totient is φ = 125181000.

The previous prime is 189024653. The next prime is 189024677. The reversal of 189024669 is 966420981.

It is a happy number.

189024669 is a `hidden beast` number, since 189 + 0 + 2 + 466 + 9 = 666.

It is not a de Polignac number, because 189024669 - 24 = 189024653 is a prime.

It is a super-2 number, since 2×1890246692 = 71460650981119122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189024469) 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 11 ways as a sum of consecutive naturals, for example, 68187 + ... + 70904.

It is an arithmetic number, because the mean of its divisors is an integer number (22903816).

Almost surely, 2189024669 is an apocalyptic number.

It is an amenable number.

189024669 is a deficient number, since it is larger than the sum of its proper divisors (85821123).

189024669 is a wasteful number, since it uses less digits than its factorization.

189024669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139248 (or 139245 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 189024669 is about 13748.6242584486. The cubic root of 189024669 is about 573.9043220520.

The spelling of 189024669 in words is "one hundred eighty-nine million, twenty-four thousand, six hundred sixty-nine".

Divisors: 1 3 9 151 453 1359 139091 417273 1251819 21002741 63008223 189024669