Base | Representation |
---|---|
bin | 1101010100010000… |
… | …00111010001110100 |
3 | 200110020112001111020 |
4 | 12222020013101310 |
5 | 104120200032410 |
6 | 3141224341140 |
7 | 342110242566 |
oct | 65210072164 |
9 | 20406461436 |
10 | 7149220980 |
11 | 30396045a0 |
12 | 14763147b0 |
13 | 89c1c1395 |
14 | 4bb6c1336 |
15 | 2bc992a70 |
hex | 1aa207474 |
7149220980 has 48 divisors (see below), whose sum is σ = 21837622464. Its totient is φ = 1733144320.
The previous prime is 7149220957. The next prime is 7149221011. The reversal of 7149220980 is 890229417.
It is a super-2 number, since 2×71492209802 (a number of 21 digits) contains 22 as substring.
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, 5415417 + ... + 5416736.
It is an arithmetic number, because the mean of its divisors is an integer number (454950468).
Almost surely, 27149220980 is an apocalyptic number.
It is an amenable number.
7149220980 is an abundant number, since it is smaller than the sum of its proper divisors (14688401484).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7149220980 is a wasteful number, since it uses less digits than its factorization.
7149220980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10832176 (or 10832174 counting only the distinct ones).
The product of its (nonzero) digits is 72576, while the sum is 42.
The square root of 7149220980 is about 84553.0660591324. The cubic root of 7149220980 is about 1926.4285549350.
The spelling of 7149220980 in words is "seven billion, one hundred forty-nine million, two hundred twenty thousand, nine hundred eighty".
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