Base | Representation |
---|---|
bin | 1011101111111110110000… |
… | …1011101110010011011000 |
3 | 1200202001000101101220111021 |
4 | 2323333230023232103120 |
5 | 3143130431330432123 |
6 | 43250512451012224 |
7 | 2502235051653502 |
oct | 273775413562330 |
9 | 50661011356437 |
10 | 12918929155288 |
11 | 4130983792192 |
12 | 154793729a074 |
13 | 729332a402a0 |
14 | 3293cad7ad72 |
15 | 1760b7190c5d |
hex | bbfec2ee4d8 |
12918929155288 has 64 divisors (see below), whose sum is σ = 27542222265600. Its totient is φ = 5631696512640.
The previous prime is 12918929155201. The next prime is 12918929155339. The reversal of 12918929155288 is 88255192981921.
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, 9221956 + ... + 10530067.
It is an arithmetic number, because the mean of its divisors is an integer number (430347222900).
Almost surely, 212918929155288 is an apocalyptic number.
It is an amenable number.
12918929155288 is an abundant number, since it is smaller than the sum of its proper divisors (14623293110312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12918929155288 is a wasteful number, since it uses less digits than its factorization.
12918929155288 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19752392 (or 19752388 counting only the distinct ones).
The product of its digits is 74649600, while the sum is 70.
The spelling of 12918929155288 in words is "twelve trillion, nine hundred eighteen billion, nine hundred twenty-nine million, one hundred fifty-five thousand, two hundred eighty-eight".
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