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68253152472 = 2334257940841
BaseRepresentation
bin111111100100001101…
…000111010011011000
320112011200100101120000
4333210031013103120
52104240301334342
651204405533000
74634243136501
oct774415072330
9215150311500
1068253152472
1126a4514172a
1211289a14160
13658957786b
143436a17ba8
151b970a644c
hexfe43474d8

68253152472 has 80 divisors (see below), whose sum is σ = 191250833400. Its totient is φ = 22741672320.

The previous prime is 68253152467. The next prime is 68253152483. The reversal of 68253152472 is 27425135286.

68253152472 is a `hidden beast` number, since 6 + 8 + 2 + 53 + 1 + 524 + 72 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1650772 + ... + 1691612.

Almost surely, 268253152472 is an apocalyptic number.

It is an amenable number.

68253152472 is an abundant number, since it is smaller than the sum of its proper divisors (122997680928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68253152472 is a wasteful number, since it uses less digits than its factorization.

68253152472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43438 (or 43425 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The spelling of 68253152472 in words is "sixty-eight billion, two hundred fifty-three million, one hundred fifty-two thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 2579 5158 7737 10316 15474 20632 23211 30948 40841 46422 61896 69633 81682 92844 122523 139266 163364 185688 208899 245046 278532 326728 367569 417798 490092 557064 735138 835596 980184 1102707 1470276 1671192 2205414 2940552 3308121 4410828 6616242 8821656 13232484 26464968 105328939 210657878 315986817 421315756 631973634 842631512 947960451 1263947268 1895920902 2527894536 2843881353 3791841804 5687762706 7583683608 8531644059 11375525412 17063288118 22751050824 34126576236 68253152472