Base | Representation |
---|---|
bin | 111010000100011000100… |
… | …1000001001110000010100 |
3 | 1001020222000210102022220020 |
4 | 1310020301020021300110 |
5 | 2021224312101103120 |
6 | 24550210155505140 |
7 | 1452412325040216 |
oct | 164106110116024 |
9 | 31228023368806 |
10 | 7980873456660 |
11 | 25a7740007125 |
12 | a8a8b64581b0 |
13 | 45b79317b3b0 |
14 | 1d83c23a45b6 |
15 | dc902c31640 |
hex | 74231209c14 |
7980873456660 has 144 divisors (see below), whose sum is σ = 24866750740608. Its totient is φ = 1901150818560.
The previous prime is 7980873456631. The next prime is 7980873456667. The reversal of 7980873456660 is 666543780897.
It is a super-2 number, since 2×79808734566602 (a number of 27 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7980873456667) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4573984 + ... + 6073143.
It is an arithmetic number, because the mean of its divisors is an integer number (172685769032).
Almost surely, 27980873456660 is an apocalyptic number.
It is an amenable number.
7980873456660 is an abundant number, since it is smaller than the sum of its proper divisors (16885877283948).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7980873456660 is a wasteful number, since it uses less digits than its factorization.
7980873456660 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10647214 (or 10647181 counting only the distinct ones).
The product of its (nonzero) digits is 365783040, while the sum is 69.
The spelling of 7980873456660 in words is "seven trillion, nine hundred eighty billion, eight hundred seventy-three million, four hundred fifty-six thousand, six hundred sixty".
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