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231416 = 2328927
BaseRepresentation
bin111000011111111000
3102202102222
4320133320
524401131
64543212
71652453
oct703770
9382388
10231416
11148959
12b1b08
1381443
146049a
154887b
hex387f8

231416 has 8 divisors (see below), whose sum is σ = 433920. Its totient is φ = 115704.

The previous prime is 231409. The next prime is 231419. The reversal of 231416 is 614132.

231416 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 231394 and 231403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14456 + ... + 14471.

It is an arithmetic number, because the mean of its divisors is an integer number (54240).

2231416 is an apocalyptic number.

It is an amenable number.

231416 is a deficient number, since it is larger than the sum of its proper divisors (202504).

231416 is a wasteful number, since it uses less digits than its factorization.

231416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28933 (or 28929 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 231416 is about 481.0571691598. The cubic root of 231416 is about 61.3947347712.

Adding to 231416 its reverse (614132), we get a palindrome (845548).

The spelling of 231416 in words is "two hundred thirty-one thousand, four hundred sixteen".

Divisors: 1 2 4 8 28927 57854 115708 231416