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1230502285 = 5246100457
BaseRepresentation
bin100100101010111…
…1111100110001101
310011202101222210201
41021111333212031
510010002033120
6322033533501
742331045135
oct11125774615
93152358721
101230502285
1158164a641
122a4114291
13167c13c7c
14b95cdac5
157306340a
hex4957f98d

1230502285 has 4 divisors (see below), whose sum is σ = 1476602748. Its totient is φ = 984401824.

The previous prime is 1230502271. The next prime is 1230502321. The reversal of 1230502285 is 5822050321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 865654084 + 364848201 = 29422^2 + 19101^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230502285 - 27 = 1230502157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123050224 + ... + 123050233.

It is an arithmetic number, because the mean of its divisors is an integer number (369150687).

Almost surely, 21230502285 is an apocalyptic number.

It is an amenable number.

1230502285 is a deficient number, since it is larger than the sum of its proper divisors (246100463).

1230502285 is an equidigital number, since it uses as much as digits as its factorization.

1230502285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246100462.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1230502285 is about 35078.5160033887. The cubic root of 1230502285 is about 1071.5870950672.

The spelling of 1230502285 in words is "one billion, two hundred thirty million, five hundred two thousand, two hundred eighty-five".

Divisors: 1 5 246100457 1230502285