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2745081471 = 311317262411
BaseRepresentation
bin1010001110011110…
…1001111001111111
321002022100120212010
42203213221321333
521110220101341
61132220342303
7125011543656
oct24347517177
97068316763
102745081471
111189588380
126473a4993
1334993c182
141c080a19d
15110edc716
hexa39e9e7f

2745081471 has 16 divisors (see below), whose sum is σ = 4005456768. Its totient is φ = 1658431200.

The previous prime is 2745081457. The next prime is 2745081491. The reversal of 2745081471 is 1741805472.

It is not a de Polignac number, because 2745081471 - 26 = 2745081407 is a prime.

It is a super-3 number, since 3×27450814713 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745081401) 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, 120745 + ... + 141666.

It is an arithmetic number, because the mean of its divisors is an integer number (250341048).

Almost surely, 22745081471 is an apocalyptic number.

2745081471 is a deficient number, since it is larger than the sum of its proper divisors (1260375297).

2745081471 is a wasteful number, since it uses less digits than its factorization.

2745081471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262742.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 2745081471 is about 52393.5250865982. The cubic root of 2745081471 is about 1400.1838994820.

The spelling of 2745081471 in words is "two billion, seven hundred forty-five million, eighty-one thousand, four hundred seventy-one".

Divisors: 1 3 11 33 317 951 3487 10461 262411 787233 2886521 8659563 83184287 249552861 915027157 2745081471