Base | Representation |
---|---|
bin | 1111100111011… |
… | …10100000011111 |
3 | 100010111111200212 |
4 | 13303232200133 |
5 | 232014002401 |
6 | 20555443035 |
7 | 3150325136 |
oct | 763564037 |
9 | 303444625 |
10 | 131000351 |
11 | 67a45559 |
12 | 37a5647b |
13 | 211a8c01 |
14 | 1358091d |
15 | b779dbb |
hex | 7cee81f |
131000351 has 4 divisors (see below), whose sum is σ = 138706272. Its totient is φ = 123294432.
The previous prime is 131000321. The next prime is 131000357. The reversal of 131000351 is 153000131.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 131000351 - 218 = 130738207 is a prime.
It is a super-2 number, since 2×1310003512 = 34322183924246402, which contains 22 as substring.
It is a Duffinian number.
131000351 is a modest number, since divided by 351 gives 131 as remainder.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131000357) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3852935 + ... + 3852968.
It is an arithmetic number, because the mean of its divisors is an integer number (34676568).
Almost surely, 2131000351 is an apocalyptic number.
131000351 is a deficient number, since it is larger than the sum of its proper divisors (7705921).
131000351 is an equidigital number, since it uses as much as digits as its factorization.
131000351 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7705920.
The product of its (nonzero) digits is 45, while the sum is 14.
The square root of 131000351 is about 11445.5384757555. The cubic root of 131000351 is about 507.8757614114.
Adding to 131000351 its reverse (153000131), we get a palindrome (284000482).
The spelling of 131000351 in words is "one hundred thirty-one million, three hundred fifty-one", and thus it is an aban number.
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