Search a number
-
+
53605168379 = 726334983431
BaseRepresentation
bin110001111011000111…
…011111010011111011
312010100211120200220122
4301323013133103323
51334240410342004
640343104443455
73605246261510
oct617307372373
9163324520818
1053605168379
11208087a1454
12a48031958b
13509393c459
142847467307
1515db127cbe
hexc7b1df4fb

53605168379 has 16 divisors (see below), whose sum is σ = 61672934400. Its totient is φ = 45640882080.

The previous prime is 53605168367. The next prime is 53605168391. The reversal of 53605168379 is 97386150635.

It is an interprime number because it is at equal distance from previous prime (53605168367) and next prime (53605168391).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53605168379 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 53605168379.

It is not an unprimeable number, because it can be changed into a prime (53605168079) 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, 600794 + ... + 684224.

It is an arithmetic number, because the mean of its divisors is an integer number (3854558400).

Almost surely, 253605168379 is an apocalyptic number.

53605168379 is a deficient number, since it is larger than the sum of its proper divisors (8067766021).

53605168379 is a wasteful number, since it uses less digits than its factorization.

53605168379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84050.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 53605168379 in words is "fifty-three billion, six hundred five million, one hundred sixty-eight thousand, three hundred seventy-nine".

Divisors: 1 7 263 349 1841 2443 83431 91787 584017 642509 21942353 29117419 153596471 203821933 7657881197 53605168379