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13065421160 = 2351129694139
BaseRepresentation
bin11000010101100001…
…01000000101101000
31020201112220011102102
430022300220011220
5203224221434120
610000245152532
7641526150611
oct141260500550
936645804372
1013065421160
1155a50a9330
1226476bb748
131302ac934c
148bd318c08
15517075d75
hex30ac28168

13065421160 has 32 divisors (see below), whose sum is σ = 32069671200. Its totient is φ = 4751062080.

The previous prime is 13065421123. The next prime is 13065421163. The reversal of 13065421160 is 6112456031.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13065421163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14846630 + ... + 14847509.

It is an arithmetic number, because the mean of its divisors is an integer number (1002177225).

Almost surely, 213065421160 is an apocalyptic number.

13065421160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13065421160 is an abundant number, since it is smaller than the sum of its proper divisors (19004250040).

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

13065421160 is a wasteful number, since it uses less digits than its factorization.

13065421160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29694161 (or 29694157 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 13065421160 its reverse (6112456031), we get a palindrome (19177877191).

The spelling of 13065421160 in words is "thirteen billion, sixty-five million, four hundred twenty-one thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 29694139 59388278 118776556 148470695 237553112 296941390 326635529 593882780 653271058 1187765560 1306542116 1633177645 2613084232 3266355290 6532710580 13065421160