Base | Representation |
---|---|
bin | 1111101010101… |
… | …11011100001010 |
3 | 100011022100021111 |
4 | 13311113130022 |
5 | 232121231104 |
6 | 21013000534 |
7 | 3154065202 |
oct | 765273412 |
9 | 304270244 |
10 | 131430154 |
11 | 68209469 |
12 | 3802314a |
13 | 212c972b |
14 | 13653402 |
15 | b812404 |
hex | 7d5770a |
131430154 has 8 divisors (see below), whose sum is σ = 197193888. Its totient is φ = 65698860.
The previous prime is 131430139. The next prime is 131430161. The reversal of 131430154 is 451034131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11659 + ... + 19969.
It is an arithmetic number, because the mean of its divisors is an integer number (24649236).
Almost surely, 2131430154 is an apocalyptic number.
131430154 is a deficient number, since it is larger than the sum of its proper divisors (65763734).
131430154 is an equidigital number, since it uses as much as digits as its factorization.
131430154 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16220.
The product of its (nonzero) digits is 720, while the sum is 22.
The square root of 131430154 is about 11464.2991063562. The cubic root of 131430154 is about 508.4305900329.
Adding to 131430154 its reverse (451034131), we get a palindrome (582464285).
The spelling of 131430154 in words is "one hundred thirty-one million, four hundred thirty thousand, one hundred fifty-four".
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