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8373897081 = 32112472592
BaseRepresentation
bin1111100110001111…
…11000011101111001
3210121120222001021100
413303013320131321
5114122204201311
63502533402013
7414340644054
oct76307703571
923546861240
108373897081
113607934900
121758499309
13a35b454b4
145961d5a9b
15340254a56
hex1f31f8779

8373897081 has 81 divisors (see below), whose sum is σ = 13818231973. Its totient is φ = 4882920240.

The previous prime is 8373897053. The next prime is 8373897083. The reversal of 8373897081 is 1807983738.

The square root of 8373897081 is 91509.

It is a perfect power (a square), and thus also a powerful number.

8373897081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8373897081 - 27 = 8373896953 is a prime.

It is a super-2 number, since 2×83738970812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8373897083) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 141930430 + ... + 141930488.

Almost surely, 28373897081 is an apocalyptic number.

8373897081 is the 91509-th square number.

8373897081 is the 45755-th centered octagonal number.

It is an amenable number.

8373897081 is a deficient number, since it is larger than the sum of its proper divisors (5444334892).

8373897081 is a wasteful number, since it uses less digits than its factorization.

8373897081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The cubic root of 8373897081 is about 2030.6849008651.

The spelling of 8373897081 in words is "eight billion, three hundred seventy-three million, eight hundred ninety-seven thousand, eighty-one".

Divisors: 1 3 9 11 33 47 59 99 121 141 177 363 423 517 531 649 1089 1551 1947 2209 2773 3481 4653 5687 5841 6627 7139 8319 10443 17061 19881 21417 24299 24957 30503 31329 38291 51183 64251 72897 91509 114873 130331 163607 218691 267289 274527 335533 344619 390993 421201 490821 801867 1006599 1172979 1263603 1433641 1472463 1799677 2405601 3019797 3790809 4300923 5399031 7689529 12902769 15770051 16197093 19796447 23068587 47310153 59389341 69205761 84584819 141930459 178168023 253754457 761263371 930433009 2791299027 8373897081