Base | Representation |
---|---|
bin | 1000010001101… |
… | …11110001111010 |
3 | 11211122122012210 |
4 | 10020313301322 |
5 | 120233400430 |
6 | 10520115550 |
7 | 1502116626 |
oct | 410676172 |
9 | 154578183 |
10 | 69434490 |
11 | 36215184 |
12 | 1b305bb6 |
13 | 115012c8 |
14 | 9316186 |
15 | 61682b0 |
hex | 4237c7a |
69434490 has 32 divisors (see below), whose sum is σ = 166872960. Its totient is φ = 18490304.
The previous prime is 69434489. The next prime is 69434527. The reversal of 69434490 is 9443496.
It is a super-2 number, since 2×694344902 = 9642296803120200, which contains 22 as substring.
It is a Curzon 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, 32227 + ... + 34313.
It is an arithmetic number, because the mean of its divisors is an integer number (5214780).
Almost surely, 269434490 is an apocalyptic number.
69434490 is an abundant number, since it is smaller than the sum of its proper divisors (97438470).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69434490 is a wasteful number, since it uses less digits than its factorization.
69434490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3206.
The product of its (nonzero) digits is 93312, while the sum is 39.
The square root of 69434490 is about 8332.7360452615. The cubic root of 69434490 is about 411.0157049664.
The spelling of 69434490 in words is "sixty-nine million, four hundred thirty-four thousand, four hundred ninety".
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