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8722872396 = 2233723744549
BaseRepresentation
bin10000001111110110…
…00111100001001100
3211111220121211102000
420013323013201030
5120331023404041
64001321232300
7426106122600
oct100773074114
924456554360
108722872396
11377691a157
121835332690
13a90230174
145ca6b7500
15360bd9bb6
hex207ec784c

8722872396 has 144 divisors (see below), whose sum is σ = 27018684000. Its totient is φ = 2424836736.

The previous prime is 8722872313. The next prime is 8722872407. The reversal of 8722872396 is 6932782278.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173530 + ... + 218078.

It is an arithmetic number, because the mean of its divisors is an integer number (187629750).

Almost surely, 28722872396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8722872396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13509342000).

8722872396 is an abundant number, since it is smaller than the sum of its proper divisors (18295811604).

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

8722872396 is a wasteful number, since it uses less digits than its factorization.

8722872396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44613 (or 44598 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 8722872396 is about 93396.3189638650. The cubic root of 8722872396 is about 2058.5109102210.

The spelling of 8722872396 in words is "eight billion, seven hundred twenty-two million, eight hundred seventy-two thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 37 42 49 54 63 74 84 98 108 111 126 147 148 189 196 222 252 259 294 333 378 441 444 518 588 666 756 777 882 999 1036 1323 1332 1554 1764 1813 1998 2331 2646 3108 3626 3996 4662 5292 5439 6993 7252 9324 10878 13986 16317 21756 27972 32634 44549 48951 65268 89098 97902 133647 178196 195804 267294 311843 400941 534588 623686 801882 935529 1202823 1247372 1603764 1648313 1871058 2182901 2405646 2806587 3296626 3742116 4365802 4811292 4944939 5613174 6548703 6593252 8419761 8731604 9889878 11226348 11538191 13097406 14834817 16839522 19646109 19779756 23076382 26194812 29669634 33679044 34614573 39292218 44504451 46152764 58938327 59339268 69229146 78584436 80767337 89008902 103843719 117876654 138458292 161534674 178017804 207687438 235753308 242302011 311531157 323069348 415374876 484604022 623062314 726906033 969208044 1246124628 1453812066 2180718099 2907624132 4361436198 8722872396