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454920009 = 33197211239
BaseRepresentation
bin11011000111011…
…000011101001001
31011201000022221020
4123013120131021
51412424420014
6113050303053
714162520255
oct3307303511
91151008836
10454920009
11213877155
12108427a89
137333024b
14445bd265
1529e111a9
hex1b1d8749

454920009 has 32 divisors (see below), whose sum is σ = 638238720. Its totient is φ = 287884800.

The previous prime is 454919987. The next prime is 454920049. The reversal of 454920009 is 900029454.

It is not a de Polignac number, because 454920009 - 28 = 454919753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (454920049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1903312 + ... + 1903550.

It is an arithmetic number, because the mean of its divisors is an integer number (19944960).

Almost surely, 2454920009 is an apocalyptic number.

It is an amenable number.

454920009 is a deficient number, since it is larger than the sum of its proper divisors (183318711).

454920009 is a wasteful number, since it uses less digits than its factorization.

454920009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 454920009 is about 21328.8539073247. The cubic root of 454920009 is about 769.0920928915.

The spelling of 454920009 in words is "four hundred fifty-four million, nine hundred twenty thousand, nine".

Divisors: 1 3 31 93 97 211 239 291 633 717 3007 6541 7409 9021 19623 20467 22227 23183 50429 61401 69549 151287 634477 718673 1563299 1903431 2156019 4689897 4891613 14674839 151640003 454920009