Base | Representation |
---|---|
bin | 1100011100000011101… |
… | …1001101000011101111 |
3 | 202102120102201000010020 |
4 | 3013000323031003233 |
5 | 12000114134033314 |
6 | 242100133213223 |
7 | 21303304150146 |
oct | 3070073150357 |
9 | 672512630106 |
10 | 213690142959 |
11 | 82697573237 |
12 | 354b8491213 |
13 | 171c668b797 |
14 | a4b237a75d |
15 | 585a29cda9 |
hex | 31c0ecd0ef |
213690142959 has 16 divisors (see below), whose sum is σ = 286337635584. Its totient is φ = 141752980800.
The previous prime is 213690142949. The next prime is 213690142961. The reversal of 213690142959 is 959241096312.
It is not a de Polignac number, because 213690142959 - 212 = 213690138863 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213690142949) 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, 332187 + ... + 733299.
It is an arithmetic number, because the mean of its divisors is an integer number (17896102224).
Almost surely, 2213690142959 is an apocalyptic number.
213690142959 is a deficient number, since it is larger than the sum of its proper divisors (72647492625).
213690142959 is a wasteful number, since it uses less digits than its factorization.
213690142959 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 401998.
The product of its (nonzero) digits is 1049760, while the sum is 51.
The spelling of 213690142959 in words is "two hundred thirteen billion, six hundred ninety million, one hundred forty-two thousand, nine hundred fifty-nine".
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