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2820538475 = 52645117489
BaseRepresentation
bin1010100000011110…
…0000000001101011
321021120100012101222
42220013200001223
521234024212400
61143513532255
7126616116146
oct25007400153
97246305358
102820538475
111218136337
1266871408b
1335c46b7a1
141ca84d05d
15117945185
hexa81e006b

2820538475 has 12 divisors (see below), whose sum is σ = 3498209880. Its totient is φ = 2255952000.

The previous prime is 2820538433. The next prime is 2820538529. The reversal of 2820538475 is 5748350282.

It is not a de Polignac number, because 2820538475 - 216 = 2820472939 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152531 + ... + 170019.

It is an arithmetic number, because the mean of its divisors is an integer number (291517490).

Almost surely, 22820538475 is an apocalyptic number.

2820538475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2820538475 is a deficient number, since it is larger than the sum of its proper divisors (677671405).

2820538475 is a wasteful number, since it uses less digits than its factorization.

2820538475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23950 (or 23945 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 2820538475 is about 53108.7419828412. The cubic root of 2820538475 is about 1412.8975631896.

The spelling of 2820538475 in words is "two billion, eight hundred twenty million, five hundred thirty-eight thousand, four hundred seventy-five".

Divisors: 1 5 25 6451 17489 32255 87445 161275 437225 112821539 564107695 2820538475