Base | Representation |
---|---|
bin | 1001000001001101… |
… | …0101001000010011 |
3 | 20020201111211222111 |
4 | 2100103111020103 |
5 | 14424233031022 |
6 | 1040122050151 |
7 | 113665021231 |
oct | 22023251023 |
9 | 6221454874 |
10 | 2420986387 |
11 | 10326469a6 |
12 | 576949957 |
13 | 2c7756031 |
14 | 18d763951 |
15 | e281e477 |
hex | 904d5213 |
2420986387 has 16 divisors (see below), whose sum is σ = 2514074112. Its totient is φ = 2329820640.
The previous prime is 2420986369. The next prime is 2420986391. The reversal of 2420986387 is 7836890242.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2420986387 is a prime.
It is a super-2 number, since 2×24209863872 = 11722350172078627538, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2420986387.
It is not an unprimeable number, because it can be changed into a prime (2420986307) 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, 905062 + ... + 907732.
It is an arithmetic number, because the mean of its divisors is an integer number (157129632).
Almost surely, 22420986387 is an apocalyptic number.
2420986387 is a deficient number, since it is larger than the sum of its proper divisors (93087725).
2420986387 is a wasteful number, since it uses less digits than its factorization.
2420986387 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3018.
The product of its (nonzero) digits is 1161216, while the sum is 49.
The square root of 2420986387 is about 49203.5200671659. The cubic root of 2420986387 is about 1342.7570743627.
The spelling of 2420986387 in words is "two billion, four hundred twenty million, nine hundred eighty-six thousand, three hundred eighty-seven".
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