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54372189 = 3122914747
BaseRepresentation
bin1100111101101…
…0011101011101
310210022101121210
43033122131131
5102404402224
65221215033
71230104334
oct317323535
9123271553
1054372189
11287676a3
1216261479
13b3594c1
147314d1b
154b90429
hex33da75d

54372189 has 8 divisors (see below), whose sum is σ = 72560160. Its totient is φ = 36216176.

The previous prime is 54372179. The next prime is 54372193. The reversal of 54372189 is 98127345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54372189 - 29 = 54371677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54372139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3687 + ... + 11060.

It is an arithmetic number, because the mean of its divisors is an integer number (9070020).

Almost surely, 254372189 is an apocalyptic number.

It is an amenable number.

54372189 is a deficient number, since it is larger than the sum of its proper divisors (18187971).

54372189 is a wasteful number, since it uses less digits than its factorization.

54372189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15979.

The product of its digits is 60480, while the sum is 39.

The square root of 54372189 is about 7373.7499957620. The cubic root of 54372189 is about 378.8427140714.

It can be divided in two parts, 5437 and 2189, that added together give a triangular number (7626 = T123).

The spelling of 54372189 in words is "fifty-four million, three hundred seventy-two thousand, one hundred eighty-nine".

Divisors: 1 3 1229 3687 14747 44241 18124063 54372189