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13312043210420 = 2251944379078313
BaseRepresentation
bin1100000110110111001110…
…0110110101011010110100
31202010121201011212000220222
43001231303212311122310
53221101031030213140
644151245045313512
72542522561206503
oct301556346653264
952117634760828
1013312043210420
114272673391259
1215abb68405898
1375742189a726
143404407d283a
1518142429e5b5
hexc1b739b56b4

13312043210420 has 48 divisors (see below), whose sum is σ = 29493047989440. Its totient is φ = 5033176402176.

The previous prime is 13312043210377. The next prime is 13312043210443. The reversal of 13312043210420 is 2401234021331.

It is a self number, because there is not a number n which added to its sum of digits gives 13312043210420.

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, 39370817 + ... + 39707496.

It is an arithmetic number, because the mean of its divisors is an integer number (614438499780).

Almost surely, 213312043210420 is an apocalyptic number.

13312043210420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13312043210420 is an abundant number, since it is smaller than the sum of its proper divisors (16181004779020).

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

13312043210420 is a wasteful number, since it uses less digits than its factorization.

13312043210420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79078784 (or 79078782 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 13312043210420 its reverse (2401234021331), we get a palindrome (15713277231751).

The spelling of 13312043210420 in words is "thirteen trillion, three hundred twelve billion, forty-three million, two hundred ten thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 443 886 1772 2215 4430 8417 8860 16834 33668 42085 84170 168340 79078313 158156626 316313252 395391565 790783130 1502487947 1581566260 3004975894 6009951788 7512439735 15024879470 30049758940 35031692659 70063385318 140126770636 175158463295 350316926590 665602160521 700633853180 1331204321042 2662408642084 3328010802605 6656021605210 13312043210420