Base | Representation |
---|---|
bin | 1000010011001… |
… | …11100111010100 |
3 | 11212000120222110 |
4 | 10021213213110 |
5 | 120311133140 |
6 | 10524231020 |
7 | 1503564066 |
oct | 411474724 |
9 | 155016873 |
10 | 69630420 |
11 | 36339402 |
12 | 1b39b470 |
13 | 1156c542 |
14 | 9367736 |
15 | 61a6380 |
hex | 42679d4 |
69630420 has 48 divisors (see below), whose sum is σ = 197886528. Its totient is φ = 18289920.
The previous prime is 69630413. The next prime is 69630461. The reversal of 69630420 is 2403696.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4641 + ... + 12680.
It is an arithmetic number, because the mean of its divisors is an integer number (4122636).
Almost surely, 269630420 is an apocalyptic number.
69630420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
69630420 is an abundant number, since it is smaller than the sum of its proper divisors (128256108).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69630420 is a wasteful number, since it uses less digits than its factorization.
69630420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17400 (or 17398 counting only the distinct ones).
The product of its (nonzero) digits is 7776, while the sum is 30.
The square root of 69630420 is about 8344.4844058815. The cubic root of 69630420 is about 411.4019427899.
The spelling of 69630420 in words is "sixty-nine million, six hundred thirty thousand, four hundred twenty".
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