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489750892231 = 1928631572017
BaseRepresentation
bin1110010000001110110…
…11011000111011000111
31201211010120201002111111
413020013123120323013
531011002212022411
61012553301145451
750245324616566
oct7100733307307
91654116632444
10489750892231
1117977a67a0a7
127ab006bb287
133724c971073
14199bdd77bdd
15cb15e6a721
hex72076d8ec7

489750892231 has 12 divisors (see below), whose sum is σ = 517483173312. Its totient is φ = 463436604864.

The previous prime is 489750892223. The next prime is 489750892243. The reversal of 489750892231 is 132298057984.

It is not a de Polignac number, because 489750892231 - 23 = 489750892223 is a prime.

It is a super-2 number, since 2×4897508922312 (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 (489750892831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474466 + ... + 1097551.

It is an arithmetic number, because the mean of its divisors is an integer number (43123597776).

Almost surely, 2489750892231 is an apocalyptic number.

489750892231 is a deficient number, since it is larger than the sum of its proper divisors (27732281081).

489750892231 is a wasteful number, since it uses less digits than its factorization.

489750892231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572918 (or 1572899 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 489750892231 in words is "four hundred eighty-nine billion, seven hundred fifty million, eight hundred ninety-two thousand, two hundred thirty-one".

Divisors: 1 19 361 863 16397 311543 1572017 29868323 567498137 1356650671 25776362749 489750892231