Base | Representation |
---|---|
bin | 1101011001100100011… |
… | …1110100110011011111 |
3 | 211000012012010001001202 |
4 | 3112121013310303133 |
5 | 12232423232411111 |
6 | 253430424430115 |
7 | 22426424454422 |
oct | 3263107646337 |
9 | 730165101052 |
10 | 230202232031 |
11 | 896a0182142 |
12 | 3874631833b |
13 | 189285704a5 |
14 | b1db32d9b9 |
15 | 5ec4be8b3b |
hex | 35991f4cdf |
230202232031 has 32 divisors (see below), whose sum is σ = 256134182400. Its totient is φ = 205915184640.
The previous prime is 230202231989. The next prime is 230202232061. The reversal of 230202232031 is 130232202032.
It is a de Polignac number, because none of the positive numbers 2k-230202232031 is a prime.
It is a super-2 number, since 2×2302022320312 (a number of 24 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 230202231994 and 230202232012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230202232061) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10705811 + ... + 10727291.
It is an arithmetic number, because the mean of its divisors is an integer number (8004193200).
Almost surely, 2230202232031 is an apocalyptic number.
230202232031 is a deficient number, since it is larger than the sum of its proper divisors (25931950369).
230202232031 is a wasteful number, since it uses less digits than its factorization.
230202232031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21839.
The product of its (nonzero) digits is 864, while the sum is 20.
Adding to 230202232031 its reverse (130232202032), we get a palindrome (360434434063).
The spelling of 230202232031 in words is "two hundred thirty billion, two hundred two million, two hundred thirty-two thousand, thirty-one".
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