Base | Representation |
---|---|
bin | 1010110001000100… |
… | …1010100101110100 |
3 | 21110102101101222000 |
4 | 2230101022211310 |
5 | 21404341242410 |
6 | 1154442335300 |
7 | 131423063421 |
oct | 25421124564 |
9 | 7412341860 |
10 | 2890180980 |
11 | 1253482825 |
12 | 687aba530 |
13 | 370a1367b |
14 | 1d5bbad48 |
15 | 11daeedc0 |
hex | ac44a974 |
2890180980 has 48 divisors (see below), whose sum is σ = 8991675840. Its totient is φ = 770714784.
The previous prime is 2890180961. The next prime is 2890180987. The reversal of 2890180980 is 890810982.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2890180987) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2675554 + ... + 2676633.
It is an arithmetic number, because the mean of its divisors is an integer number (187326580).
Almost surely, 22890180980 is an apocalyptic number.
2890180980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2890180980 is an abundant number, since it is smaller than the sum of its proper divisors (6101494860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2890180980 is a wasteful number, since it uses less digits than its factorization.
2890180980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5352205 (or 5352197 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 45.
The square root of 2890180980 is about 53760.4034583075. The cubic root of 2890180980 is about 1424.4318621601.
The spelling of 2890180980 in words is "two billion, eight hundred ninety million, one hundred eighty thousand, nine hundred eighty".
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