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215002432110425 = 52293710217850149
BaseRepresentation
bin110000111000101100100111…
…100101110111111101011001
31001012021000212011102110002212
4300320230213211313331121
5211140044440110013200
62041134430451404505
763200261461226231
oct6070544745677531
91035230764373085
10215002432110425
1162563023908443
1220144ab35b3735
1392c784732aa4b
143b1425d516cc1
1519cca8eebe035
hexc38b27977f59

215002432110425 has 48 divisors (see below), whose sum is σ = 283527635622000. Its totient is φ = 161424163353600.

The previous prime is 215002432110421. The next prime is 215002432110461. The reversal of 215002432110425 is 524011234200512.

It can be written as a sum of positive squares in 24 ways, for example, as 24653528813824 + 190348903296601 = 4965232^2 + 13796699^2 .

It is not a de Polignac number, because 215002432110425 - 22 = 215002432110421 is a prime.

It is a super-2 number, since 2×2150024321104252 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 215002432110391 and 215002432110400.

It is not an unprimeable number, because it can be changed into a prime (215002432110421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23463251 + ... + 31313399.

It is an arithmetic number, because the mean of its divisors is an integer number (5906825742125).

Almost surely, 2215002432110425 is an apocalyptic number.

215002432110425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215002432110425 is a deficient number, since it is larger than the sum of its proper divisors (68525203511575).

215002432110425 is a wasteful number, since it uses less digits than its factorization.

215002432110425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7851246 (or 7851241 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 215002432110425 its reverse (524011234200512), we get a palindrome (739013666310937).

The spelling of 215002432110425 in words is "two hundred fifteen trillion, two billion, four hundred thirty-two million, one hundred ten thousand, four hundred twenty-five".

Divisors: 1 5 25 29 37 145 185 725 925 1021 1073 5105 5365 25525 26825 29609 37777 148045 188885 740225 944425 1095533 5477665 7850149 27388325 39250745 196253725 227654321 290455513 1138271605 1452277565 5691358025 7261387825 8015002129 8423209877 40075010645 42116049385 200375053225 210580246925 232435061741 296555078773 1162175308705 1482775393865 5810876543525 7413876969325 8600097284417 43000486422085 215002432110425