Base | Representation |
---|---|
bin | 10011010101011100… |
… | …011100010000100110 |
3 | 1222120212020120101020 |
4 | 103111130130100212 |
5 | 320004240400344 |
6 | 13312025312010 |
7 | 1333321333353 |
oct | 232534342046 |
9 | 58525216336 |
10 | 20760871974 |
11 | 8893a75437 |
12 | 4034935606 |
13 | 1c5b20ab3b |
14 | 100d38762a |
15 | 817964719 |
hex | 4d571c426 |
20760871974 has 36 divisors (see below), whose sum is σ = 42279837444. Its totient is φ = 6796174128.
The previous prime is 20760871969. The next prime is 20760871979. The reversal of 20760871974 is 47917806702.
It is an interprime number because it is at equal distance from previous prime (20760871969) and next prime (20760871979).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20760871979) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20822844 + ... + 20823840.
It is an arithmetic number, because the mean of its divisors is an integer number (1174439929).
Almost surely, 220760871974 is an apocalyptic number.
20760871974 is an abundant number, since it is smaller than the sum of its proper divisors (21518965470).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20760871974 is an frugal number, since it uses more digits than its factorization.
20760871974 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2117 (or 1061 counting only the distinct ones).
The product of its (nonzero) digits is 1185408, while the sum is 51.
The spelling of 20760871974 in words is "twenty billion, seven hundred sixty million, eight hundred seventy-one thousand, nine hundred seventy-four".
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