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1630506827 = 131103312049
BaseRepresentation
bin110000100101111…
…1000111101001011
311012122002022212202
41201023320331023
511314402204302
6425443230415
755256036135
oct14113707513
94178068782
101630506827
11767418a04
1239607840b
131cca57651
14116796055
1598228202
hex612f8f4b

1630506827 has 8 divisors (see below), whose sum is σ = 1644680400. Its totient is φ = 1616359680.

The previous prime is 1630506811. The next prime is 1630506847. The reversal of 1630506827 is 7286050361.

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

It is a cyclic number.

It is not a de Polignac number, because 1630506827 - 24 = 1630506811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1630506847) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 129299 + ... + 141347.

It is an arithmetic number, because the mean of its divisors is an integer number (205585050).

Almost surely, 21630506827 is an apocalyptic number.

1630506827 is a deficient number, since it is larger than the sum of its proper divisors (14173573).

1630506827 is a wasteful number, since it uses less digits than its factorization.

1630506827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13213.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 1630506827 is about 40379.5347546254. The cubic root of 1630506827 is about 1176.9938868596.

The spelling of 1630506827 in words is "one billion, six hundred thirty million, five hundred six thousand, eight hundred twenty-seven".

Divisors: 1 131 1033 12049 135323 1578419 12446617 1630506827