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489302331 = 3789261799
BaseRepresentation
bin11101001010100…
…010100100111011
31021002201010121120
4131022202210323
52000230133311
6120315240323
715061000260
oct3512424473
91232633546
10489302331
112312200a1
12117a490a3
137a4aab0b
1448dad267
152ce53706
hex1d2a293b

489302331 has 16 divisors (see below), whose sum is σ = 753984000. Its totient is φ = 276458688.

The previous prime is 489302327. The next prime is 489302369. The reversal of 489302331 is 133203984.

It is a happy number.

It is not a de Polignac number, because 489302331 - 22 = 489302327 is a prime.

It is a super-2 number, since 2×4893023312 = 478833542244067122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 489302292 and 489302301.

It is not an unprimeable number, because it can be changed into a prime (489302311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129031 + ... + 132768.

It is an arithmetic number, because the mean of its divisors is an integer number (47124000).

Almost surely, 2489302331 is an apocalyptic number.

489302331 is a deficient number, since it is larger than the sum of its proper divisors (264681669).

489302331 is a wasteful number, since it uses less digits than its factorization.

489302331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261898.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 489302331 is about 22120.1792714254. The cubic root of 489302331 is about 787.9991727640. Note that the first 3 decimals are identical.

The spelling of 489302331 in words is "four hundred eighty-nine million, three hundred two thousand, three hundred thirty-one".

Divisors: 1 3 7 21 89 267 623 1869 261799 785397 1832593 5497779 23300111 69900333 163100777 489302331