Base | Representation |
---|---|
bin | 1000001110110… |
… | …00001100011110 |
3 | 11210220202011012 |
4 | 10013120030132 |
5 | 120133333344 |
6 | 10503455222 |
7 | 1465566320 |
oct | 407301436 |
9 | 153822135 |
10 | 69042974 |
11 | 35a78010 |
12 | 1b157512 |
13 | 113c5040 |
14 | 9253610 |
15 | 60dc29e |
hex | 41d831e |
69042974 has 32 divisors (see below), whose sum is σ = 139055616. Its totient is φ = 24829920.
The previous prime is 69042973. The next prime is 69042989. The reversal of 69042974 is 47924096.
It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69042973) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15242 + ... + 19245.
It is an arithmetic number, because the mean of its divisors is an integer number (4345488).
Almost surely, 269042974 is an apocalyptic number.
69042974 is an abundant number, since it is smaller than the sum of its proper divisors (70012642).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69042974 is a wasteful number, since it uses less digits than its factorization.
69042974 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34520.
The product of its (nonzero) digits is 108864, while the sum is 41.
The square root of 69042974 is about 8309.2101911072. The cubic root of 69042974 is about 410.2417253927.
The spelling of 69042974 in words is "sixty-nine million, forty-two thousand, nine hundred seventy-four".
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