Base | Representation |
---|---|
bin | 1000010101010… |
… | …01001010010100 |
3 | 11212112020021011 |
4 | 10022221022110 |
5 | 120343231100 |
6 | 10534102004 |
7 | 1506062611 |
oct | 412511224 |
9 | 155466234 |
10 | 69898900 |
11 | 36502095 |
12 | 1b4aa904 |
13 | 116347c6 |
14 | 93d7508 |
15 | 620abba |
hex | 42a9294 |
69898900 has 36 divisors (see below), whose sum is σ = 160606908. Its totient is φ = 26314240.
The previous prime is 69898877. The next prime is 69898901. The reversal of 69898900 is 989896.
It can be written as a sum of positive squares in 6 ways, for example, as 743044 + 69155856 = 862^2 + 8316^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69898901) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18859 + ... + 22258.
It is an arithmetic number, because the mean of its divisors is an integer number (4461303).
Almost surely, 269898900 is an apocalyptic number.
It is an amenable number.
69898900 is an abundant number, since it is smaller than the sum of its proper divisors (90708008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69898900 is a wasteful number, since it uses less digits than its factorization.
69898900 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41148 (or 41141 counting only the distinct ones).
The product of its (nonzero) digits is 279936, while the sum is 49.
The square root of 69898900 is about 8360.5562015933. The cubic root of 69898900 is about 411.9300239342.
The spelling of 69898900 in words is "sixty-nine million, eight hundred ninety-eight thousand, nine hundred".
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