Base | Representation |
---|---|
bin | 111100001100010101… |
… | …1110101010100111000 |
3 | 110100122120110000211201 |
4 | 1320120223311110320 |
5 | 4104212332201210 |
6 | 135214354103544 |
7 | 12224155516411 |
oct | 1703053652470 |
9 | 410576400751 |
10 | 129263162680 |
11 | 4a90275a373 |
12 | 21075b7abb4 |
13 | c260338312 |
14 | 63836a2808 |
15 | 356831653a |
hex | 1e18af5538 |
129263162680 has 64 divisors (see below), whose sum is σ = 292822387200. Its totient is φ = 51354384000.
The previous prime is 129263162663. The next prime is 129263162681. The reversal of 129263162680 is 86261362921.
It is a super-2 number, since 2×1292631626802 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 129263162680.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (129263162681) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3586429 + ... + 3622291.
It is an arithmetic number, because the mean of its divisors is an integer number (4575349800).
Almost surely, 2129263162680 is an apocalyptic number.
129263162680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
129263162680 is an abundant number, since it is smaller than the sum of its proper divisors (163559224520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
129263162680 is a wasteful number, since it uses less digits than its factorization.
129263162680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 36484 (or 36480 counting only the distinct ones).
The product of its (nonzero) digits is 373248, while the sum is 46.
The spelling of 129263162680 in words is "one hundred twenty-nine billion, two hundred sixty-three million, one hundred sixty-two thousand, six hundred eighty".
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