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123061 = 1091129
BaseRepresentation
bin11110000010110101
320020210211
4132002311
512414221
62345421
71021531
oct360265
9206724
10123061
1184504
125b271
1344023
1432bc1
15266e1
hex1e0b5

123061 has 4 divisors (see below), whose sum is σ = 124300. Its totient is φ = 121824.

The previous prime is 123059. The next prime is 123077. The reversal of 123061 is 160321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44100 + 78961 = 210^2 + 281^2 .

It is a cyclic number.

It is not a de Polignac number, because 123061 - 21 = 123059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123001) 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, 456 + ... + 673.

It is an arithmetic number, because the mean of its divisors is an integer number (31075).

2123061 is an apocalyptic number.

It is an amenable number.

123061 is a deficient number, since it is larger than the sum of its proper divisors (1239).

123061 is a wasteful number, since it uses less digits than its factorization.

123061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 123061 is about 350.8005131125. The cubic root of 123061 is about 49.7401182363.

Adding to 123061 its reverse (160321), we get a palindrome (283382).

The spelling of 123061 in words is "one hundred twenty-three thousand, sixty-one".

Divisors: 1 109 1129 123061