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490374729 = 3513155231
BaseRepresentation
bin11101001110101…
…000011001001001
31021011201121200000
4131032220121021
52001013442404
6120354233213
715103054635
oct3516503111
91234647600
10490374729
11231892879
12118285809
137a794c80
14491abdc5
152d0b6339
hex1d3a8649

490374729 has 24 divisors (see below), whose sum is σ = 791062272. Its totient is φ = 301767120.

The previous prime is 490374721. The next prime is 490374739. The reversal of 490374729 is 927473094.

It is not a de Polignac number, because 490374729 - 23 = 490374721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (490374721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74457 + ... + 80774.

It is an arithmetic number, because the mean of its divisors is an integer number (32960928).

Almost surely, 2490374729 is an apocalyptic number.

It is an amenable number.

490374729 is a deficient number, since it is larger than the sum of its proper divisors (300687543).

490374729 is a wasteful number, since it uses less digits than its factorization.

490374729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155259 (or 155247 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 490374729 is about 22144.4062688526. The cubic root of 490374729 is about 788.5744354547.

The spelling of 490374729 in words is "four hundred ninety million, three hundred seventy-four thousand, seven hundred twenty-nine".

Divisors: 1 3 9 13 27 39 81 117 243 351 1053 3159 155231 465693 1397079 2018003 4191237 6054009 12573711 18162027 37721133 54486081 163458243 490374729