Base | Representation |
---|---|
bin | 1000010101110… |
… | …10010001001010 |
3 | 11212122210101100 |
4 | 10022322101022 |
5 | 120403001340 |
6 | 10535402230 |
7 | 1506504111 |
oct | 412722112 |
9 | 155583340 |
10 | 69968970 |
11 | 3654a7a5 |
12 | 1b523376 |
13 | 1165a676 |
14 | 9414c78 |
15 | 6221830 |
hex | 42ba44a |
69968970 has 24 divisors (see below), whose sum is σ = 181919556. Its totient is φ = 18658368.
The previous prime is 69968933. The next prime is 69969019. The reversal of 69968970 is 7986996.
It can be written as a sum of positive squares in 2 ways, for example, as 69705801 + 263169 = 8349^2 + 513^2 .
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 11 ways as a sum of consecutive naturals, for example, 388627 + ... + 388806.
Almost surely, 269968970 is an apocalyptic number.
69968970 is an abundant number, since it is smaller than the sum of its proper divisors (111950586).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69968970 is a wasteful number, since it uses less digits than its factorization.
69968970 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 777446 (or 777443 counting only the distinct ones).
The product of its (nonzero) digits is 1469664, while the sum is 54.
The square root of 69968970 is about 8364.7456626009. The cubic root of 69968970 is about 412.0676240838.
The spelling of 69968970 in words is "sixty-nine million, nine hundred sixty-eight thousand, nine hundred seventy".
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