Base | Representation |
---|---|
bin | 1111101001011… |
… | …10011000010110 |
3 | 100010222210120121 |
4 | 13310232120112 |
5 | 232100340344 |
6 | 21005222154 |
7 | 3152464654 |
oct | 764563026 |
9 | 303883517 |
10 | 131261974 |
11 | 68104078 |
12 | 37b6195a |
13 | 2126b00c |
14 | 1360bdd4 |
15 | b7cc684 |
hex | 7d2e616 |
131261974 has 8 divisors (see below), whose sum is σ = 196980768. Its totient is φ = 65601720.
The previous prime is 131261971. The next prime is 131261987. The reversal of 131261974 is 479162131.
131261974 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131261971) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8517 + ... + 18304.
It is an arithmetic number, because the mean of its divisors is an integer number (24622596).
Almost surely, 2131261974 is an apocalyptic number.
131261974 is a deficient number, since it is larger than the sum of its proper divisors (65718794).
131261974 is a wasteful number, since it uses less digits than its factorization.
131261974 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29270.
The product of its digits is 9072, while the sum is 34.
The square root of 131261974 is about 11456.9618136747. The cubic root of 131261974 is about 508.2136323248.
The spelling of 131261974 in words is "one hundred thirty-one million, two hundred sixty-one thousand, nine hundred seventy-four".
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