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489060308431 = 2690411817791
BaseRepresentation
bin1110001110111100100…
…01000001010111001111
31201202100110020210121201
413013132101001113033
531003043414332211
61012400551410331
750222241014002
oct7073621012717
91652313223551
10489060308431
11179455881292
127a9493839a7
133716c87a8b6
1419956371539
15cac55080c1
hex71de4415cf

489060308431 has 4 divisors (see below), whose sum is σ = 489062395264. Its totient is φ = 489058221600.

The previous prime is 489060308423. The next prime is 489060308453. The reversal of 489060308431 is 134803060984.

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

It is a cyclic number.

It is not a de Polignac number, because 489060308431 - 23 = 489060308423 is a prime.

It is a super-2 number, since 2×4890603084312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489060308461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639855 + ... + 1177936.

It is an arithmetic number, because the mean of its divisors is an integer number (122265598816).

Almost surely, 2489060308431 is an apocalyptic number.

489060308431 is a deficient number, since it is larger than the sum of its proper divisors (2086833).

489060308431 is a wasteful number, since it uses less digits than its factorization.

489060308431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086832.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 489060308431 in words is "four hundred eighty-nine billion, sixty million, three hundred eight thousand, four hundred thirty-one".

Divisors: 1 269041 1817791 489060308431