Base | Representation |
---|---|
bin | 111101001011001100… |
… | …1010111110100011010 |
3 | 110120002120001220002100 |
4 | 1322112121113310122 |
5 | 4123022244034232 |
6 | 140203535144230 |
7 | 12330345502224 |
oct | 1722631276432 |
9 | 416076056070 |
10 | 131372252442 |
11 | 50795236762 |
12 | 21564375076 |
13 | c508289622 |
14 | 6503837414 |
15 | 363d576c7c |
hex | 1e96657d1a |
131372252442 has 48 divisors (see below), whose sum is σ = 286327211040. Its totient is φ = 43531329696.
The previous prime is 131372252437. The next prime is 131372252443. The reversal of 131372252442 is 244252273131.
131372252442 is a `hidden beast` number, since 1 + 31 + 372 + 252 + 4 + 4 + 2 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 131372252397 and 131372252406.
It is not an unprimeable number, because it can be changed into a prime (131372252443) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13698373 + ... + 13707959.
It is an arithmetic number, because the mean of its divisors is an integer number (5965150230).
Almost surely, 2131372252442 is an apocalyptic number.
131372252442 is an abundant number, since it is smaller than the sum of its proper divisors (154954958598).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131372252442 is a wasteful number, since it uses less digits than its factorization.
131372252442 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14027 (or 14024 counting only the distinct ones).
The product of its digits is 80640, while the sum is 36.
The spelling of 131372252442 in words is "one hundred thirty-one billion, three hundred seventy-two million, two hundred fifty-two thousand, four hundred forty-two".
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