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68386812204184 = 2341920401793617
BaseRepresentation
bin11111000110010100010111…
…01001100001010010011000
322222010201022112011211221021
433203022023221201102120
532430422142411013214
6401240245014252224
720255532646433455
oct1743121351412230
9288121275154837
1068386812204184
111a876758715531
1278059a5057074
132c20b058388b6
1412c5d218c682c
157d8d70766924
hex3e328ba61498

68386812204184 has 16 divisors (see below), whose sum is σ = 128531299793400. Its totient is φ = 34111798925952.

The previous prime is 68386812204181. The next prime is 68386812204287. The reversal of 68386812204184 is 48140221868386.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68386812204181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10200893457 + ... + 10200900160.

Almost surely, 268386812204184 is an apocalyptic number.

It is an amenable number.

68386812204184 is a deficient number, since it is larger than the sum of its proper divisors (60144487589216).

68386812204184 is a wasteful number, since it uses less digits than its factorization.

68386812204184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20401794042 (or 20401794038 counting only the distinct ones).

The product of its (nonzero) digits is 28311552, while the sum is 61.

The spelling of 68386812204184 in words is "sixty-eight trillion, three hundred eighty-six billion, eight hundred twelve million, two hundred four thousand, one hundred eighty-four".

Divisors: 1 2 4 8 419 838 1676 3352 20401793617 40803587234 81607174468 163214348936 8548351525523 17096703051046 34193406102092 68386812204184