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13020055332 = 22315137918959
BaseRepresentation
bin11000010000000111…
…00100011100100100
31020121101112100012120
430020003210130210
5203131113232312
65551544545540
7640435433664
oct141003443444
936541470176
1013020055332
115581533309
1226344822b0
1312c65a436b
148b72aa1a4
155130b428c
hex3080e4724

13020055332 has 48 divisors (see below), whose sum is σ = 30663628800. Its totient is φ = 4299674400.

The previous prime is 13020055283. The next prime is 13020055343. The reversal of 13020055332 is 23355002031.

It is a happy 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, 677269 + ... + 696227.

It is an arithmetic number, because the mean of its divisors is an integer number (638825600).

Almost surely, 213020055332 is an apocalyptic number.

13020055332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13020055332 is an abundant number, since it is smaller than the sum of its proper divisors (17643573468).

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

13020055332 is a wasteful number, since it uses less digits than its factorization.

13020055332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19496 (or 19494 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

Adding to 13020055332 its reverse (23355002031), we get a palindrome (36375057363).

The spelling of 13020055332 in words is "thirteen billion, twenty million, fifty-five thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 151 302 379 453 604 758 906 1137 1516 1812 2274 4548 18959 37918 56877 57229 75836 113754 114458 171687 227508 228916 343374 686748 2862809 5725618 7185461 8588427 11451236 14370922 17176854 21556383 28741844 34353708 43112766 86225532 1085004611 2170009222 3255013833 4340018444 6510027666 13020055332