Search a number
-
+
68849384045589 = 3272347515102861
BaseRepresentation
bin11111010011110001111110…
…00101000011110000010101
3100000202221021221201002211200
433221320333011003300111
533011012014303424324
6402232545334223113
720334126630264210
oct1751707705036025
9300687257632750
1068849384045589
111aa34950437454
12787b57b4b4a99
132c55613698264
141300483d30777
157e5de557eec9
hex3e9e3f143c15

68849384045589 has 24 divisors (see below), whose sum is σ = 118597696743552. Its totient is φ = 37631961465120.

The previous prime is 68849384045573. The next prime is 68849384045621. The reversal of 68849384045589 is 98554048394886.

68849384045589 is a `hidden beast` number, since 6 + 8 + 8 + 4 + 9 + 3 + 84 + 0 + 455 + 89 = 666.

It is not a de Polignac number, because 68849384045589 - 24 = 68849384045573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68849384045569) 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, 23757549982 + ... + 23757552879.

It is an arithmetic number, because the mean of its divisors is an integer number (4941570697648).

Almost surely, 268849384045589 is an apocalyptic number.

68849384045589 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

68849384045589 is a deficient number, since it is larger than the sum of its proper divisors (49748312697963).

68849384045589 is a wasteful number, since it uses less digits than its factorization.

68849384045589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47515102897 (or 47515102894 counting only the distinct ones).

The product of its (nonzero) digits is 9555148800, while the sum is 81.

The spelling of 68849384045589 in words is "sixty-eight trillion, eight hundred forty-nine billion, three hundred eighty-four million, forty-five thousand, five hundred eighty-nine".

Divisors: 1 3 7 9 21 23 63 69 161 207 483 1449 47515102861 142545308583 332605720027 427635925749 997817160081 1092847365803 2993451480243 3278542097409 7649931560621 9835626292227 22949794681863 68849384045589