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45918971 = 723733907
BaseRepresentation
bin1010111100101…
…0101011111011
310012101220222122
42233022223323
543223401341
64320111455
71065206360
oct257125373
9105356878
1045918971
1123a1366a
121346558b
1396899b7
146154467
15407094b
hex2bcaafb

45918971 has 16 divisors (see below), whose sum is σ = 55524864. Its totient is φ = 37122624.

The previous prime is 45918959. The next prime is 45918973. The reversal of 45918971 is 17981954.

It is not a de Polignac number, because 45918971 - 26 = 45918907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45918973) 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 15 ways as a sum of consecutive naturals, for example, 9800 + ... + 13706.

It is an arithmetic number, because the mean of its divisors is an integer number (3470304).

Almost surely, 245918971 is an apocalyptic number.

45918971 is a deficient number, since it is larger than the sum of its proper divisors (9605893).

45918971 is a wasteful number, since it uses less digits than its factorization.

45918971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010.

The product of its digits is 90720, while the sum is 44.

The square root of 45918971 is about 6776.3538130768. The cubic root of 45918971 is about 358.0942788222.

The spelling of 45918971 in words is "forty-five million, nine hundred eighteen thousand, nine hundred seventy-one".

Divisors: 1 7 23 73 161 511 1679 3907 11753 27349 89861 285211 629027 1996477 6559853 45918971