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45380231 = 137347819
BaseRepresentation
bin1010110100011…
…1001010000111
310011101112222022
42231013022013
543104131411
64300353355
71060503611
oct255071207
9104345868
1045380231
1123685926
121324585b
13952b710
146053db1
153eb5edb
hex2b47287

45380231 has 8 divisors (see below), whose sum is σ = 49541520. Its totient is φ = 41314752.

The previous prime is 45380221. The next prime is 45380233. The reversal of 45380231 is 13208354.

45380231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45380231 is a prime.

It is a super-2 number, since 2×453802312 = 4118730731226722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45380231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45380233) 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 7 ways as a sum of consecutive naturals, for example, 22961 + ... + 24858.

It is an arithmetic number, because the mean of its divisors is an integer number (6192690).

Almost surely, 245380231 is an apocalyptic number.

45380231 is a deficient number, since it is larger than the sum of its proper divisors (4161289).

45380231 is a wasteful number, since it uses less digits than its factorization.

45380231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47905.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 45380231 is about 6736.4850627015. The cubic root of 45380231 is about 356.6883302221.

Adding to 45380231 its reverse (13208354), we get a palindrome (58588585).

The spelling of 45380231 in words is "forty-five million, three hundred eighty thousand, two hundred thirty-one".

Divisors: 1 13 73 949 47819 621647 3490787 45380231