Base | Representation |
---|---|
bin | 1000010000001… |
… | …11110100001111 |
3 | 11211021122201112 |
4 | 10020013310033 |
5 | 120211104111 |
6 | 10512002235 |
7 | 1500341102 |
oct | 410076417 |
9 | 154248645 |
10 | 69238031 |
11 | 360a0615 |
12 | 1b23037b |
13 | 11462a65 |
14 | 92a4739 |
15 | 6129e8b |
hex | 4207d0f |
69238031 has 2 divisors, whose sum is σ = 69238032. Its totient is φ = 69238030.
The previous prime is 69238021. The next prime is 69238067. The reversal of 69238031 is 13083296.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 69238031 - 26 = 69237967 is a prime.
It is a super-2 number, since 2×692380312 = 9587809873513922, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (69238021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34619015 + 34619016.
It is an arithmetic number, because the mean of its divisors is an integer number (34619016).
Almost surely, 269238031 is an apocalyptic number.
69238031 is a deficient number, since it is larger than the sum of its proper divisors (1).
69238031 is an equidigital number, since it uses as much as digits as its factorization.
69238031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 7776, while the sum is 32.
The square root of 69238031 is about 8320.9393099577. The cubic root of 69238031 is about 410.6276940964.
The spelling of 69238031 in words is "sixty-nine million, two hundred thirty-eight thousand, thirty-one".
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