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13122323300020 = 22511347171893153
BaseRepresentation
bin1011111011110100011101…
…1010110011111010110100
31201110111000021101000020211
42332331013122303322310
53204444004231100040
643524151225235204
72523025255450264
oct276750732637264
951414007330224
1013122323300020
1141aa16744a580
12157b23b632b04
137425782b510c
143351a3b437a4
1517b51d5b28ea
hexbef476b3eb4

13122323300020 has 48 divisors (see below), whose sum is σ = 30148684066368. Its totient is φ = 4758002447360.

The previous prime is 13122323299997. The next prime is 13122323300069. The reversal of 13122323300020 is 2000332322131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13122323299964 and 13122323300000.

It is a congruent 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, 85870237 + ... + 86022916.

It is an arithmetic number, because the mean of its divisors is an integer number (628097584716).

Almost surely, 213122323300020 is an apocalyptic number.

13122323300020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13122323300020 is an abundant number, since it is smaller than the sum of its proper divisors (17026360766348).

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

13122323300020 is a wasteful number, since it uses less digits than its factorization.

13122323300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171893520 (or 171893518 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13122323300020 its reverse (2000332322131), we get a palindrome (15122655622151).

The spelling of 13122323300020 in words is "thirteen trillion, one hundred twenty-two billion, three hundred twenty-three million, three hundred thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 347 694 1388 1735 3470 3817 6940 7634 15268 19085 38170 76340 171893153 343786306 687572612 859465765 1718931530 1890824683 3437863060 3781649366 7563298732 9454123415 18908246830 37816493660 59646924091 119293848182 238587696364 298234620455 596469240910 656116165001 1192938481820 1312232330002 2624464660004 3280580825005 6561161650010 13122323300020