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490740873 = 371933407
BaseRepresentation
bin11101010000000…
…001110010001001
31021012102012220220
4131100001302021
52001112201443
6120410140253
715106141260
oct3520016211
91235365826
10490740873
11232012977
12118421689
137a89281c
14492655d7
152d139a83
hex1d401c89

490740873 has 32 divisors (see below), whose sum is σ = 789565440. Its totient is φ = 265586256.

The previous prime is 490740869. The next prime is 490740889. The reversal of 490740873 is 378047094.

It is not a de Polignac number, because 490740873 - 22 = 490740869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490740823) 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 31 ways as a sum of consecutive naturals, for example, 142336 + ... + 145742.

It is an arithmetic number, because the mean of its divisors is an integer number (24673920).

Almost surely, 2490740873 is an apocalyptic number.

It is an amenable number.

490740873 is a deficient number, since it is larger than the sum of its proper divisors (298824567).

490740873 is an equidigital number, since it uses as much as digits as its factorization.

490740873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474 (or 3436 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 490740873 is about 22152.6719155952. The cubic root of 490740873 is about 788.7706527209.

The spelling of 490740873 in words is "four hundred ninety million, seven hundred forty thousand, eight hundred seventy-three".

Divisors: 1 3 7 19 21 57 133 361 399 1083 2527 3407 6859 7581 10221 20577 23849 48013 64733 71547 144039 194199 453131 1229927 1359393 3689781 8609489 23368613 25828467 70105839 163580291 490740873