Base | Representation |
---|---|
bin | 1011110100000100100111… |
… | …0010110011001110010000 |
3 | 1200222202110000102221202120 |
4 | 2331001021302303032100 |
5 | 3200303410101010010 |
6 | 43343055341414240 |
7 | 2510303650061031 |
oct | 275011162631620 |
9 | 50882400387676 |
10 | 12989219156880 |
11 | 415877364979a |
12 | 155949326a380 |
13 | 732b552947c5 |
14 | 32c9782c2a88 |
15 | 177d2ce87e70 |
hex | bd049cb3390 |
12989219156880 has 320 divisors, whose sum is σ = 43933833768960. Its totient is φ = 3163729231872.
The previous prime is 12989219156867. The next prime is 12989219156951. The reversal of 12989219156880 is 8865191298921.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13907152 + ... + 14811728.
It is an arithmetic number, because the mean of its divisors is an integer number (137293230528).
Almost surely, 212989219156880 is an apocalyptic number.
12989219156880 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 12989219156880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21966916884480).
12989219156880 is an abundant number, since it is smaller than the sum of its proper divisors (30944614612080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12989219156880 is a wasteful number, since it uses less digits than its factorization.
12989219156880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 904726 (or 904720 counting only the distinct ones).
The product of its (nonzero) digits is 44789760, while the sum is 69.
The spelling of 12989219156880 in words is "twelve trillion, nine hundred eighty-nine billion, two hundred nineteen million, one hundred fifty-six thousand, eight hundred eighty".
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