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189119528 = 23131818457
BaseRepresentation
bin10110100010110…
…11110000101000
3111011212021012222
423101123300220
5341403311103
630433253212
74454326613
oct1321336050
9434767188
10189119528
1197831334
1253404208
1330247a60
141b18d17a
151190a638
hexb45bc28

189119528 has 16 divisors (see below), whose sum is σ = 381876180. Its totient is φ = 87285888.

The previous prime is 189119519. The next prime is 189119533. The reversal of 189119528 is 825911981.

It can be written as a sum of positive squares in 2 ways, for example, as 188732644 + 386884 = 13738^2 + 622^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 909125 + ... + 909332.

Almost surely, 2189119528 is an apocalyptic number.

It is an amenable number.

189119528 is an abundant number, since it is smaller than the sum of its proper divisors (192756652).

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

189119528 is a wasteful number, since it uses less digits than its factorization.

189119528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818476 (or 1818472 counting only the distinct ones).

The product of its digits is 51840, while the sum is 44.

The square root of 189119528 is about 13752.0735890992. The cubic root of 189119528 is about 574.0003075589. Note that the first 3 decimals are identical.

The spelling of 189119528 in words is "one hundred eighty-nine million, one hundred nineteen thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 13 26 52 104 1818457 3636914 7273828 14547656 23639941 47279882 94559764 189119528