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54195201189 = 3229474417967
BaseRepresentation
bin110010011110010010…
…010010010010100101
312011212221211110202200
4302132102102102211
51341442432414224
640521423125113
73626002416003
oct623622222245
9164787743680
1054195201189
1120a90861878
12a605a43799
135158c583ac
1428a1977a73
151622d275c9
hexc9e4924a5

54195201189 has 24 divisors (see below), whose sum is σ = 82704360960. Its totient is φ = 34142041248.

The previous prime is 54195201157. The next prime is 54195201233. The reversal of 54195201189 is 98110259145.

54195201189 is a `hidden beast` number, since 5 + 4 + 1 + 9 + 520 + 118 + 9 = 666.

It is not a de Polignac number, because 54195201189 - 25 = 54195201157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54195201089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2196717 + ... + 2221250.

It is an arithmetic number, because the mean of its divisors is an integer number (3446015040).

Almost surely, 254195201189 is an apocalyptic number.

It is an amenable number.

54195201189 is a deficient number, since it is larger than the sum of its proper divisors (28509159771).

54195201189 is a wasteful number, since it uses less digits than its factorization.

54195201189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4418049 (or 4418046 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The spelling of 54195201189 in words is "fifty-four billion, one hundred ninety-five million, two hundred one thousand, one hundred eighty-nine".

Divisors: 1 3 9 29 47 87 141 261 423 1363 4089 12267 4417967 13253901 39761703 128121043 207644449 384363129 622933347 1153089387 1868800041 6021689021 18065067063 54195201189