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52584451969 = 72172412472
BaseRepresentation
bin110000111110010001…
…110000111110000001
312000201200220221020011
4300332101300332001
51330143104430334
640053523144521
73541043316100
oct607621607601
9160650827204
1052584451969
1120334609075
12a236515141
134c6032aa4a
14278ba86037
15157b703564
hexc3e470f81

52584451969 has 81 divisors (see below), whose sum is σ = 68050303689. Its totient is φ = 40505848320.

The previous prime is 52584451943. The next prime is 52584451973. The reversal of 52584451969 is 96915448525.

The square root of 52584451969 is 229313.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3704548225 + 48879903744 = 60865^2 + 221088^2 .

It is not a de Polignac number, because 52584451969 - 213 = 52584443777 is a prime.

It is a super-2 number, since 2×525844519692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52584451939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1118818104 + ... + 1118818150.

Almost surely, 252584451969 is an apocalyptic number.

52584451969 is the 229313-rd square number.

52584451969 is the 114657-th centered octagonal number.

It is an amenable number.

52584451969 is a deficient number, since it is larger than the sum of its proper divisors (15465851720).

52584451969 is an equidigital number, since it uses as much as digits as its factorization.

52584451969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 112 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 58.

The spelling of 52584451969 in words is "fifty-two billion, five hundred eighty-four million, four hundred fifty-one thousand, nine hundred sixty-nine".

Divisors: 1 7 17 41 47 49 119 287 289 329 697 799 833 1681 1927 2009 2023 2209 2303 4879 5593 11767 11849 13489 13583 14161 15463 28577 32759 34153 37553 39151 79007 82369 82943 90569 94423 95081 108241 200039 229313 262871 485809 553049 556903 580601 633983 638401 665567 1343119 1400273 1539673 1605191 1840097 3400663 3713329 3871343 3898321 4437881 4468807 9401833 10777711 22833023 23804641 25993303 26174441 27288247 31281649 63126593 65812831 75443977 159831161 181953121 183221087 441886151 1073152081 1118818127 1282547609 3093203057 7512064567 52584451969