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45231189 = 371212353
BaseRepresentation
bin1010110010001…
…0110001010101
310011002222112020
42230202301111
543034344224
64253243353
71056313233
oct254426125
9104088466
1045231189
1123593953
1213193559
1394a8923
146015953
153e86c79
hex2b22c55

45231189 has 8 divisors (see below), whose sum is σ = 61157952. Its totient is φ = 29729280.

The previous prime is 45231187. The next prime is 45231209. The reversal of 45231189 is 98113254.

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

It is not a de Polignac number, because 45231189 - 21 = 45231187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45231181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105964 + ... + 106389.

It is an arithmetic number, because the mean of its divisors is an integer number (7644744).

Almost surely, 245231189 is an apocalyptic number.

It is an amenable number.

45231189 is a deficient number, since it is larger than the sum of its proper divisors (15926763).

45231189 is a wasteful number, since it uses less digits than its factorization.

45231189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212427.

The product of its digits is 8640, while the sum is 33.

The square root of 45231189 is about 6725.4136675747. The cubic root of 45231189 is about 356.2974122186.

The spelling of 45231189 in words is "forty-five million, two hundred thirty-one thousand, one hundred eighty-nine".

Divisors: 1 3 71 213 212353 637059 15077063 45231189