Base | Representation |
---|---|
bin | 111101000110111101… |
… | …1100100101101110011 |
3 | 110112201122211001121202 |
4 | 1322031323210231303 |
5 | 4122224414120334 |
6 | 140141503041415 |
7 | 12324002330654 |
oct | 1721573445563 |
9 | 415648731552 |
10 | 131230223219 |
11 | 50722049037 |
12 | 215248a026b |
13 | c4b4a1b774 |
14 | 64cca2552b |
15 | 3630d6e17e |
hex | 1e8dee4b73 |
131230223219 has 8 divisors (see below), whose sum is σ = 135763020000. Its totient is φ = 126697934272.
The previous prime is 131230223101. The next prime is 131230223221. The reversal of 131230223219 is 912322032131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131230223219 - 228 = 130961787763 is a prime.
It is a super-2 number, since 2×1312302232192 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (29).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131230223191 and 131230223200.
It is not an unprimeable number, because it can be changed into a prime (131230223239) 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 7 ways as a sum of consecutive naturals, for example, 442082 + ... + 676680.
It is an arithmetic number, because the mean of its divisors is an integer number (16970377500).
Almost surely, 2131230223219 is an apocalyptic number.
131230223219 is a deficient number, since it is larger than the sum of its proper divisors (4532796781).
131230223219 is a wasteful number, since it uses less digits than its factorization.
131230223219 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 253917.
The product of its (nonzero) digits is 3888, while the sum is 29.
The spelling of 131230223219 in words is "one hundred thirty-one billion, two hundred thirty million, two hundred twenty-three thousand, two hundred nineteen".
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