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13031301552 = 243271485449
BaseRepresentation
bin11000010001011100…
…11110000110110000
31020122011200201010020
430020232132012300
5203142003122202
65553030003440
7640633143543
oct141056360660
936564621106
1013031301552
115587914805
1226381a6580
1312c8a11229
148b899685a
155140865bc
hex308b9e1b0

13031301552 has 20 divisors (see below), whose sum is σ = 33664195800. Its totient is φ = 4343767168.

The previous prime is 13031301529. The next prime is 13031301593. The reversal of 13031301552 is 25510313031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135742677 + ... + 135742772.

It is an arithmetic number, because the mean of its divisors is an integer number (1683209790).

Almost surely, 213031301552 is an apocalyptic number.

13031301552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13031301552 is an abundant number, since it is smaller than the sum of its proper divisors (20632894248).

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

13031301552 is a wasteful number, since it uses less digits than its factorization.

13031301552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271485460 (or 271485454 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

Adding to 13031301552 its reverse (25510313031), we get a palindrome (38541614583).

The spelling of 13031301552 in words is "thirteen billion, thirty-one million, three hundred one thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 271485449 542970898 814456347 1085941796 1628912694 2171883592 3257825388 4343767184 6515650776 13031301552