Base | Representation |
---|---|
bin | 1000010101110… |
… | …00101011111010 |
3 | 11212122110111100 |
4 | 10022320223322 |
5 | 120402244430 |
6 | 10535312230 |
7 | 1506446163 |
oct | 412705372 |
9 | 155573440 |
10 | 69962490 |
11 | 36545944 |
12 | 1b51b676 |
13 | 11657730 |
14 | 941276a |
15 | 621e960 |
hex | 42b8afa |
69962490 has 48 divisors (see below), whose sum is σ = 195898248. Its totient is φ = 17221248.
The previous prime is 69962489. The next prime is 69962507. The reversal of 69962490 is 9426996.
It can be written as a sum of positive squares in 4 ways, for example, as 50168889 + 19793601 = 7083^2 + 4449^2 .
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28729 + ... + 31068.
Almost surely, 269962490 is an apocalyptic number.
69962490 is an abundant number, since it is smaller than the sum of its proper divisors (125935758).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69962490 is a wasteful number, since it uses less digits than its factorization.
69962490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59823 (or 59820 counting only the distinct ones).
The product of its (nonzero) digits is 209952, while the sum is 45.
The square root of 69962490 is about 8364.3583137023. The cubic root of 69962490 is about 412.0549028226.
The spelling of 69962490 in words is "sixty-nine million, nine hundred sixty-two thousand, four hundred ninety".
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