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487971925 = 52714091979
BaseRepresentation
bin11101000101011…
…101110001010101
31021000012112122021
4131011131301111
51444410100200
6120230533141
715043456450
oct3505356125
91230175567
10487971925
112304a1591
121175071b1
137a1333ac
1448b44497
152cc8e41a
hex1d15dc55

487971925 has 24 divisors (see below), whose sum is σ = 692366400. Its totient is φ = 334202880.

The previous prime is 487971923. The next prime is 487971977. The reversal of 487971925 is 529179784.

It is not a de Polignac number, because 487971925 - 21 = 487971923 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487971923) 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, 245586 + ... + 247564.

It is an arithmetic number, because the mean of its divisors is an integer number (28848600).

Almost surely, 2487971925 is an apocalyptic number.

It is an amenable number.

487971925 is a deficient number, since it is larger than the sum of its proper divisors (204394475).

487971925 is a wasteful number, since it uses less digits than its factorization.

487971925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405 (or 3400 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 52.

The square root of 487971925 is about 22090.0865774673. The cubic root of 487971925 is about 787.2843383584.

The spelling of 487971925 in words is "four hundred eighty-seven million, nine hundred seventy-one thousand, nine hundred twenty-five".

Divisors: 1 5 7 25 35 175 1409 1979 7045 9863 9895 13853 35225 49315 49475 69265 246575 346325 2788411 13942055 19518877 69710275 97594385 487971925