Base | Representation |
---|---|
bin | 1000010001010… |
… | …00000100100010 |
3 | 11211112100221200 |
4 | 10020220010202 |
5 | 120224321041 |
6 | 10514502030 |
7 | 1501431216 |
oct | 410500442 |
9 | 154470850 |
10 | 69370146 |
11 | 361808aa |
12 | 1b294916 |
13 | 114aac31 |
14 | 92da946 |
15 | 61541b6 |
hex | 4228122 |
69370146 has 24 divisors (see below), whose sum is σ = 155485980. Its totient is φ = 22325856.
The previous prime is 69370141. The next prime is 69370151. The reversal of 69370146 is 64107396.
It is an interprime number because it is at equal distance from previous prime (69370141) and next prime (69370151).
It can be written as a sum of positive squares in 2 ways, for example, as 63824121 + 5546025 = 7989^2 + 2355^2 .
It is a super-2 number, since 2×693701462 = 9624434312122632, which contains 22 as substring.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 69370146.
It is not an unprimeable number, because it can be changed into a prime (69370141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65925 + ... + 66968.
Almost surely, 269370146 is an apocalyptic number.
69370146 is an abundant number, since it is smaller than the sum of its proper divisors (86115834).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69370146 is a wasteful number, since it uses less digits than its factorization.
69370146 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 132930 (or 132927 counting only the distinct ones).
The product of its (nonzero) digits is 27216, while the sum is 36.
The square root of 69370146 is about 8328.8742336525. The cubic root of 69370146 is about 410.8887048358. Note that the first 3 decimals are identical.
The spelling of 69370146 in words is "sixty-nine million, three hundred seventy thousand, one hundred forty-six".
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