Base | Representation |
---|---|
bin | 111100100011001110… |
… | …1101101001011011111 |
3 | 110102122002122221101100 |
4 | 1321012131231023133 |
5 | 4112300442224411 |
6 | 135422512044143 |
7 | 12252203026125 |
oct | 1710635551337 |
9 | 412562587340 |
10 | 130031211231 |
11 | 50167257639 |
12 | 2124b233653 |
13 | c3534b1c0c |
14 | 64176b1915 |
15 | 35b097b456 |
hex | 1e4676d2df |
130031211231 has 24 divisors (see below), whose sum is σ = 193900202496. Its totient is φ = 83883082320.
The previous prime is 130031211223. The next prime is 130031211269. The reversal of 130031211231 is 132112130031.
It is not a de Polignac number, because 130031211231 - 23 = 130031211223 is a prime.
It is a super-2 number, since 2×1300312112312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130031211131) 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 23 ways as a sum of consecutive naturals, for example, 4662976 + ... + 4690778.
It is an arithmetic number, because the mean of its divisors is an integer number (8079175104).
Almost surely, 2130031211231 is an apocalyptic number.
130031211231 is a deficient number, since it is larger than the sum of its proper divisors (63868991265).
130031211231 is a wasteful number, since it uses less digits than its factorization.
130031211231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44603 (or 44600 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 130031211231 its reverse (132112130031), we get a palindrome (262143341262).
The spelling of 130031211231 in words is "one hundred thirty billion, thirty-one million, two hundred eleven thousand, two hundred thirty-one".
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