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45287069 = 235397383
BaseRepresentation
bin1010110011000…
…0011010011101
310011012211011212
42230300122131
543043141234
64254354205
71056635162
oct254603235
9104184155
1045287069
1123621933
12131bb965
1394c81a9
14602c069
153e985ce
hex2b3069d

45287069 has 16 divisors (see below), whose sum is σ = 48771072. Its totient is φ = 41952768.

The previous prime is 45287059. The next prime is 45287107. The reversal of 45287069 is 96078254.

45287069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45287069 is a prime.

It is a super-2 number, since 2×452870692 = 4101837237221522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45287059) 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 15 ways as a sum of consecutive naturals, for example, 118052 + ... + 118434.

It is an arithmetic number, because the mean of its divisors is an integer number (3048192).

Almost surely, 245287069 is an apocalyptic number.

It is an amenable number.

45287069 is a deficient number, since it is larger than the sum of its proper divisors (3484003).

45287069 is a wasteful number, since it uses less digits than its factorization.

45287069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 45287069 is about 6729.5667765466. The cubic root of 45287069 is about 356.4440787581. Note that the first 3 decimals are identical.

The spelling of 45287069 in words is "forty-five million, two hundred eighty-seven thousand, sixty-nine".

Divisors: 1 23 53 97 383 1219 2231 5141 8809 20299 37151 118243 466877 854473 1969003 45287069