Base | Representation |
---|---|
bin | 1000010101100… |
… | …10110100111010 |
3 | 11212121020120110 |
4 | 10022302310322 |
5 | 120401012430 |
6 | 10535005150 |
7 | 1506316206 |
oct | 412626472 |
9 | 155536513 |
10 | 69938490 |
11 | 36529906 |
12 | 1b5097b6 |
13 | 1164982b |
14 | 9407b06 |
15 | 62177b0 |
hex | 42b2d3a |
69938490 has 16 divisors (see below), whose sum is σ = 167852448. Its totient is φ = 18650256.
The previous prime is 69938483. The next prime is 69938501. The reversal of 69938490 is 9483996.
It is a happy 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 7 ways as a sum of consecutive naturals, for example, 1165612 + ... + 1165671.
It is an arithmetic number, because the mean of its divisors is an integer number (10490778).
Almost surely, 269938490 is an apocalyptic number.
69938490 is an abundant number, since it is smaller than the sum of its proper divisors (97913958).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69938490 is a wasteful number, since it uses less digits than its factorization.
69938490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2331293.
The product of its (nonzero) digits is 419904, while the sum is 48.
The square root of 69938490 is about 8362.9235318757. The cubic root of 69938490 is about 412.0077801968.
The spelling of 69938490 in words is "sixty-nine million, nine hundred thirty-eight thousand, four hundred ninety".
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