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28613077453 = 577101348953
BaseRepresentation
bin11010101001011110…
…001110100111001101
32201212002112221022101
4122221132032213031
5432044421434303
621051125315101
72032026100612
oct325136164715
981762487271
1028613077453
1111153377654
125666565a91
13290cc44b7c
14155617c509
15b26eb8d1d
hex6a978e9cd

28613077453 has 8 divisors (see below), whose sum is σ = 28691547768. Its totient is φ = 28534708224.

The previous prime is 28613077433. The next prime is 28613077483. The reversal of 28613077453 is 35477031682.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3493046404 + 25120031049 = 59102^2 + 158493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28613077453 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 (28613077433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560025 + ... + 608977.

It is an arithmetic number, because the mean of its divisors is an integer number (3586443471).

Almost surely, 228613077453 is an apocalyptic number.

It is an amenable number.

28613077453 is a deficient number, since it is larger than the sum of its proper divisors (78470315).

28613077453 is a wasteful number, since it uses less digits than its factorization.

28613077453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50543.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 28613077453 in words is "twenty-eight billion, six hundred thirteen million, seventy-seven thousand, four hundred fifty-three".

Divisors: 1 577 1013 48953 584501 28245881 49589389 28613077453