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45180709 = 76454387
BaseRepresentation
bin1010110001011…
…0011100100101
310011000102021121
42230112130211
543031240314
64252213541
71056013120
oct254263445
9104012247
1045180709
1123559a32
121316a2b1
13948b962
1460013b7
153e76d24
hex2b16725

45180709 has 4 divisors (see below), whose sum is σ = 51635104. Its totient is φ = 38726316.

The previous prime is 45180703. The next prime is 45180719. The reversal of 45180709 is 90708154.

It is a happy number.

45180709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 45180709 - 27 = 45180581 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 (45180703) 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, 3227187 + ... + 3227200.

It is an arithmetic number, because the mean of its divisors is an integer number (12908776).

Almost surely, 245180709 is an apocalyptic number.

It is an amenable number.

45180709 is a deficient number, since it is larger than the sum of its proper divisors (6454395).

45180709 is an equidigital number, since it uses as much as digits as its factorization.

45180709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454394.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 45180709 is about 6721.6596908799. The cubic root of 45180709 is about 356.1648150075.

The spelling of 45180709 in words is "forty-five million, one hundred eighty thousand, seven hundred nine".

Divisors: 1 7 6454387 45180709