Base | Representation |
---|---|
bin | 1110111110101100… |
… | …0001000010101111 |
3 | 101101020021112200022 |
4 | 3233223001002233 |
5 | 31213340443322 |
6 | 1503000352355 |
7 | 201434125463 |
oct | 35753010257 |
9 | 11336245608 |
10 | 4021031087 |
11 | 1783849197 |
12 | 9427756bb |
13 | 4c10a6248 |
14 | 2a206a4a3 |
15 | 18802b942 |
hex | efac10af |
4021031087 has 2 divisors, whose sum is σ = 4021031088. Its totient is φ = 4021031086.
The previous prime is 4021031017. The next prime is 4021031101. The reversal of 4021031087 is 7801301204.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 4021031087 - 216 = 4020965551 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (4021031017) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010515543 + 2010515544.
It is an arithmetic number, because the mean of its divisors is an integer number (2010515544).
Almost surely, 24021031087 is an apocalyptic number.
4021031087 is a deficient number, since it is larger than the sum of its proper divisors (1).
4021031087 is an equidigital number, since it uses as much as digits as its factorization.
4021031087 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1344, while the sum is 26.
The square root of 4021031087 is about 63411.6005711889. The cubic root of 4021031087 is about 1590.1782544769.
The spelling of 4021031087 in words is "four billion, twenty-one million, thirty-one thousand, eighty-seven".
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