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1429630285 = 5285926057
BaseRepresentation
bin101010100110110…
…0110110101001101
310200122002202001211
41111031212311031
510411441132120
6353505534421
750266441216
oct12515466515
93618082054
101429630285
11673a97436
1233a944411
1319a2543a5
14d7c2640d
158579925a
hex55366d4d

1429630285 has 4 divisors (see below), whose sum is σ = 1715556348. Its totient is φ = 1143704224.

The previous prime is 1429630273. The next prime is 1429630303. The reversal of 1429630285 is 5820369241.

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 888695721 + 540934564 = 29811^2 + 23258^2 .

It is a cyclic number.

It is not a de Polignac number, because 1429630285 - 213 = 1429622093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142963024 + ... + 142963033.

It is an arithmetic number, because the mean of its divisors is an integer number (428889087).

Almost surely, 21429630285 is an apocalyptic number.

It is an amenable number.

1429630285 is a deficient number, since it is larger than the sum of its proper divisors (285926063).

1429630285 is an equidigital number, since it uses as much as digits as its factorization.

1429630285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285926062.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1429630285 is about 37810.4520602439. The cubic root of 1429630285 is about 1126.5260698456.

The spelling of 1429630285 in words is "one billion, four hundred twenty-nine million, six hundred thirty thousand, two hundred eighty-five".

Divisors: 1 5 285926057 1429630285