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489161920606 = 2972897870367
BaseRepresentation
bin1110001111001000101…
…00101001000001011110
31201202121112110020022121
413013210110221001132
531003300422424411
61012415021333154
750224613502262
oct7074424510136
91652545406277
10489161920606
111794a8173a97
127a9774071ba
1337187937148
1419965a620a2
15cace3ca571
hex71e452905e

489161920606 has 16 divisors (see below), whose sum is σ = 741563980416. Its totient is φ = 241975673856.

The previous prime is 489161920487. The next prime is 489161920651. The reversal of 489161920606 is 606029161984.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126835 + ... + 997201.

It is an arithmetic number, because the mean of its divisors is an integer number (46347748776).

Almost surely, 2489161920606 is an apocalyptic number.

489161920606 is a deficient number, since it is larger than the sum of its proper divisors (252402059810).

489161920606 is a wasteful number, since it uses less digits than its factorization.

489161920606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873363.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 489161920606 in words is "four hundred eighty-nine billion, one hundred sixty-one million, nine hundred twenty thousand, six hundred six".

Divisors: 1 2 97 194 2897 5794 281009 562018 870367 1740734 84425599 168851198 2521453199 5042906398 244580960303 489161920606