Base | Representation |
---|---|
bin | 1000001111100… |
… | …00100111000100 |
3 | 11211002211100010 |
4 | 10013300213010 |
5 | 120200033410 |
6 | 10505550220 |
7 | 1466464014 |
oct | 407604704 |
9 | 154084303 |
10 | 69142980 |
11 | 36036165 |
12 | 1b1a5370 |
13 | 1142b70a |
14 | 927bc44 |
15 | 610bc20 |
hex | 41f09c4 |
69142980 has 24 divisors (see below), whose sum is σ = 193600512. Its totient is φ = 18438112.
The previous prime is 69142967. The next prime is 69142993. The reversal of 69142980 is 8924196.
It is an interprime number because it is at equal distance from previous prime (69142967) and next prime (69142993).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576132 + ... + 576251.
It is an arithmetic number, because the mean of its divisors is an integer number (8066688).
Almost surely, 269142980 is an apocalyptic number.
69142980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
69142980 is an abundant number, since it is smaller than the sum of its proper divisors (124457532).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69142980 is a wasteful number, since it uses less digits than its factorization.
69142980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1152395 (or 1152393 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 39.
The square root of 69142980 is about 8315.2257936871. The cubic root of 69142980 is about 410.4397027733.
The spelling of 69142980 in words is "sixty-nine million, one hundred forty-two thousand, nine hundred eighty".
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