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1968320127 = 31559420851
BaseRepresentation
bin111010101010010…
…0010111001111111
312002011202000121110
41311110202321333
513012342221002
6523151533103
766530305434
oct16524427177
95064660543
101968320127
1192007a054
1246b22a193
13254a34887
141495adb8b
15b7c05e6c
hex75522e7f

1968320127 has 8 divisors (see below), whose sum is σ = 2626116480. Its totient is φ = 1311368600.

The previous prime is 1968320119. The next prime is 1968320153. The reversal of 1968320127 is 7210238691.

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 1968320127 - 23 = 1968320119 is a prime.

It is a super-2 number, since 2×19683201272 = 7748568244706592258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968320177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205749 + ... + 215102.

It is an arithmetic number, because the mean of its divisors is an integer number (328264560).

Almost surely, 21968320127 is an apocalyptic number.

1968320127 is a deficient number, since it is larger than the sum of its proper divisors (657796353).

1968320127 is a wasteful number, since it uses less digits than its factorization.

1968320127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422413.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 1968320127 is about 44365.7539888595. The cubic root of 1968320127 is about 1253.2332567234.

The spelling of 1968320127 in words is "one billion, nine hundred sixty-eight million, three hundred twenty thousand, one hundred twenty-seven".

Divisors: 1 3 1559 4677 420851 1262553 656106709 1968320127