Search a number
-
+
18014175980 = 225472332353
BaseRepresentation
bin10000110001101110…
…101000001011101100
31201111102211221210222
4100301232220023230
5243343112112410
612135310150512
71205256653333
oct206156501354
951442757728
1018014175980
117704595049
1235a8ab2438
131911154b38
14c2c67ad1a
15706758955
hex431ba82ec

18014175980 has 72 divisors (see below), whose sum is σ = 38911102272. Its totient is φ = 7002198016.

The previous prime is 18014175901. The next prime is 18014175997. The reversal of 18014175980 is 8957141081.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51031484 + ... + 51031836.

It is an arithmetic number, because the mean of its divisors is an integer number (540431976).

Almost surely, 218014175980 is an apocalyptic number.

18014175980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18014175980 is an abundant number, since it is smaller than the sum of its proper divisors (20896926292).

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

18014175980 is a wasteful number, since it uses less digits than its factorization.

18014175980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 44.

The spelling of 18014175980 in words is "eighteen billion, fourteen million, one hundred seventy-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 47 94 188 233 235 353 466 470 706 932 940 1165 1412 1765 2330 3530 4660 7060 10951 16591 21902 33182 43804 54289 54755 66364 82249 82955 108578 109510 164498 165910 217156 219020 271445 328996 331820 411245 542890 822490 1085780 1644980 2551583 3865703 5103166 7731406 10206332 12757915 15462812 19164017 19328515 25515830 38328034 38657030 51031660 76656068 77314060 95820085 191640170 383280340 900708799 1801417598 3602835196 4503543995 9007087990 18014175980