Base | Representation |
---|---|
bin | 1100011110100101111… |
… | …1110001001101100110 |
3 | 202111022212111211012002 |
4 | 3013221133301031212 |
5 | 12003012412114440 |
6 | 242251450325302 |
7 | 21326210610200 |
oct | 3075137611546 |
9 | 674285454162 |
10 | 214370816870 |
11 | 82a06812661 |
12 | 35668429832 |
13 | 172a46c2402 |
14 | a538923770 |
15 | 5899e04115 |
hex | 31e97f1366 |
214370816870 has 48 divisors (see below), whose sum is σ = 458416635840. Its totient is φ = 71934758784.
The previous prime is 214370816851. The next prime is 214370816879. The reversal of 214370816870 is 78618073412.
It is a happy number.
It is a super-2 number, since 2×2143708168702 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (47).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (214370816879) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4631135 + ... + 4677194.
It is an arithmetic number, because the mean of its divisors is an integer number (9550346580).
Almost surely, 2214370816870 is an apocalyptic number.
214370816870 is an abundant number, since it is smaller than the sum of its proper divisors (244045818970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
214370816870 is a wasteful number, since it uses less digits than its factorization.
214370816870 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9308397 (or 9308390 counting only the distinct ones).
The product of its (nonzero) digits is 451584, while the sum is 47.
The spelling of 214370816870 in words is "two hundred fourteen billion, three hundred seventy million, eight hundred sixteen thousand, eight hundred seventy".
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