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13520141300 = 2252899715661
BaseRepresentation
bin11001001011101110…
…01111101111110100
31021220020112100012002
430211313033233310
5210142124010200
610113331314432
7656020206401
oct144567175764
937806470162
1013520141300
1158088492a6
122753a4ba18
131376089613
149238852a8
15541e47bd5
hex325dcfbf4

13520141300 has 72 divisors (see below), whose sum is σ = 29976128280. Its totient is φ = 5291827200.

The previous prime is 13520141281. The next prime is 13520141317. The reversal of 13520141300 is 314102531.

It can be written as a sum of positive squares in 12 ways, for example, as 1872119824 + 11648021476 = 43268^2 + 107926^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 855470 + ... + 871130.

It is an arithmetic number, because the mean of its divisors is an integer number (416335115).

Almost surely, 213520141300 is an apocalyptic number.

13520141300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13520141300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14988064140).

13520141300 is an abundant number, since it is smaller than the sum of its proper divisors (16455986980).

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

13520141300 is a wasteful number, since it uses less digits than its factorization.

13520141300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15861 (or 15854 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 13520141300 its reverse (314102531), we get a palindrome (13834243831).

The spelling of 13520141300 in words is "thirteen billion, five hundred twenty million, one hundred forty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 89 97 100 178 194 356 388 445 485 890 970 1780 1940 2225 2425 4450 4850 8633 8900 9700 15661 17266 31322 34532 43165 62644 78305 86330 156610 172660 215825 313220 391525 431650 783050 863300 1393829 1519117 1566100 2787658 3038234 5575316 6076468 6969145 7595585 13938290 15191170 27876580 30382340 34845725 37977925 69691450 75955850 135201413 139382900 151911700 270402826 540805652 676007065 1352014130 2704028260 3380035325 6760070650 13520141300