Base | Representation |
---|---|
bin | 1111101110001… |
… | …01011100100110 |
3 | 100012011020100221 |
4 | 13313011130212 |
5 | 232230140432 |
6 | 21030354554 |
7 | 3160652650 |
oct | 767053446 |
9 | 305136327 |
10 | 131880742 |
11 | 68496a54 |
12 | 381bba5a |
13 | 21426856 |
14 | 1372d6d0 |
15 | b8a0b97 |
hex | 7dc5726 |
131880742 has 16 divisors (see below), whose sum is σ = 231340032. Its totient is φ = 55205640.
The previous prime is 131880739. The next prime is 131880751. The reversal of 131880742 is 247088131.
It is a happy number.
It is a super-2 number, since 2×1318807422 = 34785060220941128, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 131880698 and 131880707.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108934 + ... + 110137.
It is an arithmetic number, because the mean of its divisors is an integer number (14458752).
Almost surely, 2131880742 is an apocalyptic number.
131880742 is a deficient number, since it is larger than the sum of its proper divisors (99459290).
131880742 is a wasteful number, since it uses less digits than its factorization.
131880742 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 219123.
The product of its (nonzero) digits is 10752, while the sum is 34.
The square root of 131880742 is about 11483.9340820121. The cubic root of 131880742 is about 509.0109525809.
The spelling of 131880742 in words is "one hundred thirty-one million, eight hundred eighty thousand, seven hundred forty-two".
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