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141893189 = 751188939
BaseRepresentation
bin10000111010100…
…01111001000101
3100212222220212022
420131101321011
5242311040224
622025132525
73342033524
oct1035217105
9325886768
10141893189
11731054a9
123b62a145
1323520c89
1414bb84bb
15c6cc65e
hex8751e45

141893189 has 4 divisors (see below), whose sum is σ = 142082880. Its totient is φ = 141703500.

The previous prime is 141893177. The next prime is 141893207. The reversal of 141893189 is 981398141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 981398141 = 4192342239.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-141893189 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 (141893119) 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 3 ways as a sum of consecutive naturals, for example, 93719 + ... + 95220.

It is an arithmetic number, because the mean of its divisors is an integer number (35520720).

Almost surely, 2141893189 is an apocalyptic number.

It is an amenable number.

141893189 is a deficient number, since it is larger than the sum of its proper divisors (189691).

141893189 is an equidigital number, since it uses as much as digits as its factorization.

141893189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189690.

The product of its digits is 62208, while the sum is 44.

The square root of 141893189 is about 11911.8927547221. The cubic root of 141893189 is about 521.5795033571.

The spelling of 141893189 in words is "one hundred forty-one million, eight hundred ninety-three thousand, one hundred eighty-nine".

Divisors: 1 751 188939 141893189