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13498954225 = 5219212232
BaseRepresentation
bin11001001001001100…
…11011000111110001
31021211202122220222121
430210212123013301
5210121213013400
610111253234241
7655342134451
oct144446330761
937752586877
1013498954225
1157a7898119
122748932981
13137187baa3
14920b2bd61
1554016021a
hex32499b1f1

13498954225 has 27 divisors (see below), whose sum is σ = 17680511883. Its totient is φ = 10222421040.

The previous prime is 13498954199. The next prime is 13498954241. The reversal of 13498954225 is 52245989431.

It is a happy number.

The square root of 13498954225 is 116185.

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

13498954225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4859623521 + 8639330704 = 69711^2 + 92948^2 .

It is not a de Polignac number, because 13498954225 - 217 = 13498823153 is a prime.

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, 11036964 + ... + 11038186.

Almost surely, 213498954225 is an apocalyptic number.

13498954225 is the 116185-th square number.

13498954225 is the 58093-rd centered octagonal number.

It is an amenable number.

13498954225 is a deficient number, since it is larger than the sum of its proper divisors (4181557658).

13498954225 is an frugal number, since it uses more digits than its factorization.

13498954225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494 (or 1247 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 52.

The spelling of 13498954225 in words is "thirteen billion, four hundred ninety-eight million, nine hundred fifty-four thousand, two hundred twenty-five".

Divisors: 1 5 19 25 95 361 475 1223 1805 6115 9025 23237 30575 116185 441503 580925 1495729 2207515 7478645 11037575 28418851 37393225 142094255 539958169 710471275 2699790845 13498954225