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2800280052745 = 57213783428573
BaseRepresentation
bin101000101111111101101…
…100101010010000001001
3100220201000022221202002121
4220233331230222100021
5331334433143141440
65542233023531241
7406212356500300
oct50577554522011
910821008852077
102800280052745
1198a6570a532a
12392868159b21
131740b0546416
149976a0b5437
154cc95b8d34a
hex28bfdb2a409

2800280052745 has 24 divisors (see below), whose sum is σ = 3937494978504. Its totient is φ = 1906176013056.

The previous prime is 2800280052709. The next prime is 2800280052751. The reversal of 2800280052745 is 5472500820082.

2800280052745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1092804709129 + 1707475343616 = 1045373^2 + 1306704^2 .

It is not a de Polignac number, because 2800280052745 - 231 = 2798132569097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41680722 + ... + 41747851.

It is an arithmetic number, because the mean of its divisors is an integer number (164062290771).

Almost surely, 22800280052745 is an apocalyptic number.

It is an amenable number.

2800280052745 is a deficient number, since it is larger than the sum of its proper divisors (1137214925759).

2800280052745 is a wasteful number, since it uses less digits than its factorization.

2800280052745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83428729 (or 83428722 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 43.

The spelling of 2800280052745 in words is "two trillion, eight hundred billion, two hundred eighty million, fifty-two thousand, seven hundred forty-five".

Divisors: 1 5 7 35 49 137 245 685 959 4795 6713 33565 83428573 417142865 584000011 2920000055 4088000077 11429714501 20440000385 57148572505 80008001507 400040007535 560056010549 2800280052745