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489701992 = 23138356731
BaseRepresentation
bin11101001100000…
…100001001101000
31021010110102211211
4131030010021220
52000330430432
6120332002504
715064253413
oct3514041150
91233412754
10489701992
1123147339a
12118000434
137a5ba9c0
1449074b7a
152ced1d47
hex1d304268

489701992 has 32 divisors (see below), whose sum is σ = 1000752480. Its totient is φ = 223289280.

The previous prime is 489701969. The next prime is 489701999. The reversal of 489701992 is 299107984.

It is not an unprimeable number, because it can be changed into a prime (489701999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19734 + ... + 36997.

It is an arithmetic number, because the mean of its divisors is an integer number (31273515).

Almost surely, 2489701992 is an apocalyptic number.

It is an amenable number.

489701992 is an abundant number, since it is smaller than the sum of its proper divisors (511050488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489701992 is a wasteful number, since it uses less digits than its factorization.

489701992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56833 (or 56829 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 489701992 is about 22129.2112828270. The cubic root of 489701992 is about 788.2136596712.

The spelling of 489701992 in words is "four hundred eighty-nine million, seven hundred one thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 13 26 52 83 104 166 332 664 1079 2158 4316 8632 56731 113462 226924 453848 737503 1475006 2950012 4708673 5900024 9417346 18834692 37669384 61212749 122425498 244850996 489701992