Base | Representation |
---|---|
bin | 111101000001101100… |
… | …0110100111110011101 |
3 | 110112021022222121001111 |
4 | 1322003120310332131 |
5 | 4121344123430441 |
6 | 140112143542021 |
7 | 12316424014045 |
oct | 1720330647635 |
9 | 415238877044 |
10 | 131053342621 |
11 | 50641217023 |
12 | 214955ba911 |
13 | c48719a6a6 |
14 | 64b3340725 |
15 | 3620580081 |
hex | 1e83634f9d |
131053342621 has 16 divisors (see below), whose sum is σ = 135205918848. Its totient is φ = 126933480000.
The previous prime is 131053342619. The next prime is 131053342663. The reversal of 131053342621 is 126243350131.
It is a cyclic number.
It is not a de Polignac number, because 131053342621 - 21 = 131053342619 is a prime.
It is a super-2 number, since 2×1310533426212 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131053342691) 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, 26957731 + ... + 26962591.
It is an arithmetic number, because the mean of its divisors is an integer number (8450369928).
Almost surely, 2131053342621 is an apocalyptic number.
It is an amenable number.
131053342621 is a deficient number, since it is larger than the sum of its proper divisors (4152576227).
131053342621 is a wasteful number, since it uses less digits than its factorization.
131053342621 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8052.
The product of its (nonzero) digits is 12960, while the sum is 31.
Adding to 131053342621 its reverse (126243350131), we get a palindrome (257296692752).
The spelling of 131053342621 in words is "one hundred thirty-one billion, fifty-three million, three hundred forty-two thousand, six hundred twenty-one".
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