Base | Representation |
---|---|
bin | 111101010000101010… |
… | …0010011010101100101 |
3 | 110120120022211110002100 |
4 | 1322201110103111211 |
5 | 4123411200111431 |
6 | 140234042202313 |
7 | 12335032032210 |
oct | 1724124232545 |
9 | 416508743070 |
10 | 131555472741 |
11 | 508796a88a0 |
12 | 215b57b3399 |
13 | c53721a1c4 |
14 | 651dccc777 |
15 | 364e6b94e6 |
hex | 1ea1513565 |
131555472741 has 48 divisors (see below), whose sum is σ = 236951290368. Its totient is φ = 68329677600.
The previous prime is 131555472721. The next prime is 131555472817. The reversal of 131555472741 is 147274555131.
131555472741 is a `hidden beast` number, since 1 + 31 + 5 + 5 + 547 + 2 + 74 + 1 = 666.
It is not a de Polignac number, because 131555472741 - 215 = 131555439973 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131555472721) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6234090 + ... + 6255156.
It is an arithmetic number, because the mean of its divisors is an integer number (4936485216).
Almost surely, 2131555472741 is an apocalyptic number.
131555472741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
131555472741 is a deficient number, since it is larger than the sum of its proper divisors (105395817627).
131555472741 is a wasteful number, since it uses less digits than its factorization.
131555472741 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30102 (or 30099 counting only the distinct ones).
The product of its digits is 588000, while the sum is 45.
The spelling of 131555472741 in words is "one hundred thirty-one billion, five hundred fifty-five million, four hundred seventy-two thousand, seven hundred forty-one".
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