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631650485 = 5149847853
BaseRepresentation
bin100101101001100…
…011100010110101
31122000120011120102
4211221203202311
52243200303420
6142402243445
721436640414
oct4551434265
91560504512
10631650485
112a46063a4
12157656585
13a0b2abab
145dc6547b
153a6c0a75
hex25a638b5

631650485 has 8 divisors (see below), whose sum is σ = 763068600. Its totient is φ = 501928384.

The previous prime is 631650463. The next prime is 631650491. The reversal of 631650485 is 584056136.

631650485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1540081 + 630110404 = 1241^2 + 25102^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 631650485 - 216 = 631584949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423182 + ... + 424671.

It is an arithmetic number, because the mean of its divisors is an integer number (95383575).

Almost surely, 2631650485 is an apocalyptic number.

It is an amenable number.

631650485 is a deficient number, since it is larger than the sum of its proper divisors (131418115).

631650485 is a wasteful number, since it uses less digits than its factorization.

631650485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848007.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 631650485 is about 25132.6577384884. The cubic root of 631650485 is about 858.0098586501.

The spelling of 631650485 in words is "six hundred thirty-one million, six hundred fifty thousand, four hundred eighty-five".

Divisors: 1 5 149 745 847853 4239265 126330097 631650485