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642096935 = 51634611709
BaseRepresentation
bin100110010001011…
…001111100100111
31122202012220101222
4212101121330213
52303334100220
6143414210555
721624506504
oct4621317447
91582186358
10642096935
112aa4a0a27
1215b053a5b
13a3047a1c
14613c44ab
153b585e25
hex26459f27

642096935 has 16 divisors (see below), whose sum is σ = 777379680. Its totient is φ = 509120640.

The previous prime is 642096929. The next prime is 642096937. The reversal of 642096935 is 539690246.

It is not a de Polignac number, because 642096935 - 216 = 642031399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642096937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374861 + ... + 376569.

It is an arithmetic number, because the mean of its divisors is an integer number (48586230).

Almost surely, 2642096935 is an apocalyptic number.

642096935 is a deficient number, since it is larger than the sum of its proper divisors (135282745).

642096935 is a wasteful number, since it uses less digits than its factorization.

642096935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 642096935 is about 25339.6317060844. The cubic root of 642096935 is about 862.7140394368.

The spelling of 642096935 in words is "six hundred forty-two million, ninety-six thousand, nine hundred thirty-five".

Divisors: 1 5 163 461 815 1709 2305 8545 75143 278567 375715 787849 1392835 3939245 128419387 642096935