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489923801 = 4130738923
BaseRepresentation
bin11101001100111…
…010010011011001
31021010212201002222
4131030322103121
52000410030201
6120340433425
715066166163
oct3514722331
91233781088
10489923801
11231605004
121180a8875
137a667953
14490d1933
152d02791b
hex1d33a4d9

489923801 has 8 divisors (see below), whose sum is σ = 503520864. Its totient is φ = 476405280.

The previous prime is 489923773. The next prime is 489923807. The reversal of 489923801 is 108329984.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 489923801 - 26 = 489923737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489923807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6875 + ... + 32048.

It is an arithmetic number, because the mean of its divisors is an integer number (62940108).

Almost surely, 2489923801 is an apocalyptic number.

489923801 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

489923801 is a deficient number, since it is larger than the sum of its proper divisors (13597063).

489923801 is a wasteful number, since it uses less digits than its factorization.

489923801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39271.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 489923801 is about 22134.2223942925. Note that the first 3 decimals coincide. The cubic root of 489923801 is about 788.3326480195.

The spelling of 489923801 in words is "four hundred eighty-nine million, nine hundred twenty-three thousand, eight hundred one".

Divisors: 1 41 307 12587 38923 1595843 11949361 489923801