Search a number
-
+
13012121332 = 2273375472521
BaseRepresentation
bin11000001111001010…
…10011011011110100
31020120211121020210201
430013211103123310
5203122100340312
65551102530244
7640311130540
oct140745233364
936524536721
1013012121332
115578004391
122631896984
1312c4a56ca2
148b6202a20
15512548557
hex3079536f4

13012121332 has 48 divisors (see below), whose sum is σ = 26159555968. Its totient is φ = 5547709440.

The previous prime is 13012121327. The next prime is 13012121341. The reversal of 13012121332 is 23312121031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5160232 + ... + 5162752.

Almost surely, 213012121332 is an apocalyptic number.

It is an amenable number.

13012121332 is an abundant number, since it is smaller than the sum of its proper divisors (13147434636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13012121332 is a wasteful number, since it uses less digits than its factorization.

13012121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3416 (or 3414 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13012121332 its reverse (23312121031), we get a palindrome (36324242363).

The spelling of 13012121332 in words is "thirteen billion, twelve million, one hundred twenty-one thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 337 547 674 1094 1348 2188 2359 2521 3829 4718 5042 7658 9436 10084 15316 17647 35294 70588 184339 368678 737356 849577 1290373 1378987 1699154 2580746 2757974 3398308 5161492 5515948 5947039 9652909 11894078 19305818 23788156 38611636 464718619 929437238 1858874476 3253030333 6506060666 13012121332