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489507051 = 311193492237
BaseRepresentation
bin11101001011010…
…100100011101011
31021010002112102210
4131023110203223
52000303211201
6120323500203
715062512155
oct3513244353
91233075383
10489507051
1123134a990
12117b27663
137a550057
1449023ad5
152ce941d6
hex1d2d48eb

489507051 has 32 divisors (see below), whose sum is σ = 751968000. Its totient is φ = 280126080.

The previous prime is 489507049. The next prime is 489507059. The reversal of 489507051 is 150705984.

It is not a de Polignac number, because 489507051 - 21 = 489507049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489507059) 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, 217705 + ... + 219941.

It is an arithmetic number, because the mean of its divisors is an integer number (23499000).

Almost surely, 2489507051 is an apocalyptic number.

489507051 is a deficient number, since it is larger than the sum of its proper divisors (262460949).

489507051 is a wasteful number, since it uses less digits than its factorization.

489507051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 489507051 is about 22124.8062364397. The cubic root of 489507051 is about 788.1090548604.

The spelling of 489507051 in words is "four hundred eighty-nine million, five hundred seven thousand, fifty-one".

Divisors: 1 3 11 19 33 57 209 349 627 1047 2237 3839 6631 6711 11517 19893 24607 42503 72941 73821 127509 218823 467533 780713 1402599 2342139 8587843 14833547 25763529 44500641 163169017 489507051