Base | Representation |
---|---|
bin | 1011110101000001100… |
… | …0110011010100000111 |
3 | 201102112012111101201101 |
4 | 2331100120303110013 |
5 | 11312134302014311 |
6 | 233204313240531 |
7 | 20452533463666 |
oct | 2752030632407 |
9 | 642465441641 |
10 | 203212141831 |
11 | 791aaa57976 |
12 | 33473403147 |
13 | 1621694c40a |
14 | 9b9a94addd |
15 | 544546eec1 |
hex | 2f50633507 |
203212141831 has 2 divisors, whose sum is σ = 203212141832. Its totient is φ = 203212141830.
The previous prime is 203212141829. The next prime is 203212141837. The reversal of 203212141831 is 138141212302.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 203212141831 - 21 = 203212141829 is a prime.
It is a super-2 number, since 2×2032121418312 (a number of 23 digits) contains 22 as substring.
Together with 203212141829, it forms a pair of twin primes.
It is a self number, because there is not a number n which added to its sum of digits gives 203212141831.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (203212141837) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101606070915 + 101606070916.
It is an arithmetic number, because the mean of its divisors is an integer number (101606070916).
Almost surely, 2203212141831 is an apocalyptic number.
203212141831 is a deficient number, since it is larger than the sum of its proper divisors (1).
203212141831 is an equidigital number, since it uses as much as digits as its factorization.
203212141831 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2304, while the sum is 28.
The spelling of 203212141831 in words is "two hundred three billion, two hundred twelve million, one hundred forty-one thousand, eight hundred thirty-one".
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