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13082121 = 331324761
BaseRepresentation
bin110001111001…
…111000001001
3220121122022000
4301321320021
511322111441
61144221213
7216124203
oct61717011
926548260
1013082121
117425878
12446a809
132930700
141a47773
1512362b6
hexc79e09

13082121 has 48 divisors (see below), whose sum is σ = 21784320. Its totient is φ = 7750080.

The previous prime is 13082107. The next prime is 13082159. The reversal of 13082121 is 12128031.

13082121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13082121 - 210 = 13081097 is a prime.

It is a super-2 number, since 2×130821212 = 342283779717282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13082094 and 13082103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13082171) 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, 214431 + ... + 214491.

It is an arithmetic number, because the mean of its divisors is an integer number (453840).

Almost surely, 213082121 is an apocalyptic number.

It is an amenable number.

13082121 is a deficient number, since it is larger than the sum of its proper divisors (8702199).

13082121 is a wasteful number, since it uses less digits than its factorization.

13082121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 13082121 is about 3616.9214810388. The cubic root of 13082121 is about 235.6275425806.

It can be divided in two parts, 13082 and 121, that added together give a triangular number (13203 = T162).

The spelling of 13082121 in words is "thirteen million, eighty-two thousand, one hundred twenty-one".

Divisors: 1 3 9 13 27 39 47 61 117 141 169 183 351 423 507 549 611 793 1269 1521 1647 1833 2379 2867 4563 5499 7137 7943 8601 10309 16497 21411 23829 25803 30927 37271 71487 77409 92781 111813 214461 278343 335439 484523 1006317 1453569 4360707 13082121