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641060863 = 2945748371
BaseRepresentation
bin100110001101011…
…100111111111111
31122200021021011221
4212031130333333
52303102421423
6143340054211
721612633052
oct4615347777
91580237157
10641060863
112a9953573
1215a834367
13a2a74271
14611d4a99
153b42de5d
hex2635cfff

641060863 has 8 divisors (see below), whose sum is σ = 664631280. Its totient is φ = 617588160.

The previous prime is 641060843. The next prime is 641060897. The reversal of 641060863 is 368060146.

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 641060863 - 25 = 641060831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641060843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10933 + ... + 37438.

It is an arithmetic number, because the mean of its divisors is an integer number (83078910).

Almost surely, 2641060863 is an apocalyptic number.

641060863 is a deficient number, since it is larger than the sum of its proper divisors (23570417).

641060863 is a wasteful number, since it uses less digits than its factorization.

641060863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48857.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 641060863 is about 25319.1797457975. The cubic root of 641060863 is about 862.2497715051.

It can be divided in two parts, 6410608 and 63, that multiplied together give a palindrome (403868304).

The spelling of 641060863 in words is "six hundred forty-one million, sixty thousand, eight hundred sixty-three".

Divisors: 1 29 457 13253 48371 1402759 22105547 641060863