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5518289973 = 372311425031
BaseRepresentation
bin1010010001110101…
…00110110000110101
3112020120122011202010
411020322212300311
542300140234343
62311324034433
7253514455650
oct51072466065
915216564663
105518289973
112381a26a29
1210a0092a19
1369c348951
143a4c58897
152246d3d33
hex148ea6c35

5518289973 has 16 divisors (see below), whose sum is σ = 8774424576. Its totient is φ = 3016207920.

The previous prime is 5518289971. The next prime is 5518289989. The reversal of 5518289973 is 3799828155.

5518289973 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5518289973 - 21 = 5518289971 is a prime.

It is a super-2 number, since 2×55182899732 = 60903048452224681458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5518289971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5712033 + ... + 5712998.

It is an arithmetic number, because the mean of its divisors is an integer number (548401536).

Almost surely, 25518289973 is an apocalyptic number.

It is an amenable number.

5518289973 is a deficient number, since it is larger than the sum of its proper divisors (3256134603).

5518289973 is a wasteful number, since it uses less digits than its factorization.

5518289973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11425064.

The product of its digits is 5443200, while the sum is 57.

The square root of 5518289973 is about 74285.1934977624. The cubic root of 5518289973 is about 1767.1286686612.

The spelling of 5518289973 in words is "five billion, five hundred eighteen million, two hundred eighty-nine thousand, nine hundred seventy-three".

Divisors: 1 3 7 21 23 69 161 483 11425031 34275093 79975217 239925651 262775713 788327139 1839429991 5518289973