Base | Representation |
---|---|
bin | 111101001001011010… |
… | …1010101000110011111 |
3 | 110112221101120202101122 |
4 | 1322102311111012133 |
5 | 4122411443104404 |
6 | 140154002001155 |
7 | 12326021412506 |
oct | 1722265250637 |
9 | 415841522348 |
10 | 131312472479 |
11 | 50764516131 |
12 | 215483461bb |
13 | c4c8a88876 |
14 | 64d991583d |
15 | 36381b93be |
hex | 1e92d5519f |
131312472479 has 16 divisors (see below), whose sum is σ = 143543911680. Its totient is φ = 119583060480.
The previous prime is 131312472457. The next prime is 131312472481. The reversal of 131312472479 is 974274213131.
It is not a de Polignac number, because 131312472479 - 28 = 131312472223 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131312472409) 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, 4342697 + ... + 4372829.
It is an arithmetic number, because the mean of its divisors is an integer number (8971494480).
Almost surely, 2131312472479 is an apocalyptic number.
131312472479 is a deficient number, since it is larger than the sum of its proper divisors (12231439201).
131312472479 is a wasteful number, since it uses less digits than its factorization.
131312472479 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38450.
The product of its digits is 254016, while the sum is 44.
The spelling of 131312472479 in words is "one hundred thirty-one billion, three hundred twelve million, four hundred seventy-two thousand, four hundred seventy-nine".
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