Search a number
-
+
13161452205 = 3511617129281
BaseRepresentation
bin11000100000111101…
…11101001010101101
31020222020121001020210
430100132331022231
5203423312432310
610013555333033
7644103332526
oct142036751255
936866531223
1013161452205
115644329930
1226738b1179
131319980455
148cbd9584d
155206e4820
hex3107bd2ad

13161452205 has 32 divisors (see below), whose sum is σ = 23010127488. Its totient is φ = 6370918400.

The previous prime is 13161452203. The next prime is 13161452221. The reversal of 13161452205 is 50225416131.

It is not a de Polignac number, because 13161452205 - 21 = 13161452203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13161452203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37165 + ... + 166445.

It is an arithmetic number, because the mean of its divisors is an integer number (719066484).

Almost surely, 213161452205 is an apocalyptic number.

13161452205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13161452205 is a deficient number, since it is larger than the sum of its proper divisors (9848675283).

13161452205 is a wasteful number, since it uses less digits than its factorization.

13161452205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129917.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 13161452205 its reverse (50225416131), we get a palindrome (63386868336).

The spelling of 13161452205 in words is "thirteen billion, one hundred sixty-one million, four hundred fifty-two thousand, two hundred five".

Divisors: 1 3 5 11 15 33 55 165 617 1851 3085 6787 9255 20361 33935 101805 129281 387843 646405 1422091 1939215 4266273 7110455 21331365 79766377 239299131 398831885 877430147 1196495655 2632290441 4387150735 13161452205