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13012132220 = 2254001162611
BaseRepresentation
bin11000001111001010…
…10110000101111100
31020120211121210201222
430013211112011330
5203122101212340
65551103052512
7640311204353
oct140745260574
936524553658
1013012132220
11557801158a
1226318a1138
1312c4a5bc29
148b620699a
1551254b8b5
hex30795617c

13012132220 has 24 divisors (see below), whose sum is σ = 27332475408. Its totient is φ = 5203520000.

The previous prime is 13012132207. The next prime is 13012132241. The reversal of 13012132220 is 2223121031.

13012132220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×130121322203 (a number of 31 digits) contains 333 as substring.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 1286 + ... + 161325.

It is an arithmetic number, because the mean of its divisors is an integer number (1138853142).

Almost surely, 213012132220 is an apocalyptic number.

13012132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13012132220 is an abundant number, since it is smaller than the sum of its proper divisors (14320343188).

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

13012132220 is a wasteful number, since it uses less digits than its factorization.

13012132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166621 (or 166619 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13012132220 its reverse (2223121031), we get a palindrome (15235253251).

The spelling of 13012132220 in words is "thirteen billion, twelve million, one hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 4001 8002 16004 20005 40010 80020 162611 325222 650444 813055 1626110 3252220 650606611 1301213222 2602426444 3253033055 6506066110 13012132220