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20414718610225 = 52809211172
BaseRepresentation
bin1001010010001001011000…
…00011010000101100110001
32200021121221211200202010121
410221010230003100230301
510133433320431011400
6111230220421130241
74204625521032652
oct451045403205461
980247854622117
1020414718610225
116560919499115
122358613b59981
13b5113b087ca4
14508113117529
15256078a0e21a
hex12912c0d0b31

20414718610225 has 27 divisors (see below), whose sum is σ = 25368291622947. Its totient is φ = 16296984247680.

The previous prime is 20414718610213. The next prime is 20414718610267. The reversal of 20414718610225 is 52201681741402.

The square root of 20414718610225 is 4518265.

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

It can be written as a sum of positive squares in 13 ways, for example, as 15687120725809 + 4727597884416 = 3960697^2 + 2174304^2 .

It is not a de Polignac number, because 20414718610225 - 229 = 20414181739313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 18276381367 + ... + 18276382483.

Almost surely, 220414718610225 is an apocalyptic number.

20414718610225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20414718610225 is the 4518265-th square number.

20414718610225 is the 2259133-rd centered octagonal number.

It is an amenable number.

20414718610225 is a deficient number, since it is larger than the sum of its proper divisors (4953573012722).

20414718610225 is an frugal number, since it uses more digits than its factorization.

20414718610225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862 (or 1931 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 20414718610225 in words is "twenty trillion, four hundred fourteen billion, seven hundred eighteen million, six hundred ten thousand, two hundred twenty-five".

Divisors: 1 5 25 809 1117 4045 5585 20225 27925 654481 903653 1247689 3272405 4518265 6238445 16362025 22591325 31192225 731055277 1009380401 3655276385 5046902005 18276381925 25234510025 816588744409 4082943722045 20414718610225