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131134223 = 1167717609
BaseRepresentation
bin1111101000011…
…11001100001111
3100010202022100002
413310033030033
5232032243343
621002354515
73151423343
oct764171417
9303668302
10131134223
11680270a0
1237abba3b
1321224b1c
14135b7623
15b7a48b8
hex7d0f30f

131134223 has 8 divisors (see below), whose sum is σ = 143274960. Its totient is φ = 119030080.

The previous prime is 131134193. The next prime is 131134271. The reversal of 131134223 is 322431131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131134223 - 210 = 131133199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131134195 and 131134204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131104223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358 + ... + 16251.

It is an arithmetic number, because the mean of its divisors is an integer number (17909370).

Almost surely, 2131134223 is an apocalyptic number.

131134223 is a deficient number, since it is larger than the sum of its proper divisors (12140737).

131134223 is a wasteful number, since it uses less digits than its factorization.

131134223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18297.

The product of its digits is 432, while the sum is 20.

The square root of 131134223 is about 11451.3852000533. The cubic root of 131134223 is about 508.0487054692.

Adding to 131134223 its reverse (322431131), we get a palindrome (453565354).

The spelling of 131134223 in words is "one hundred thirty-one million, one hundred thirty-four thousand, two hundred twenty-three".

Divisors: 1 11 677 7447 17609 193699 11921293 131134223