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120406 = 21113421
BaseRepresentation
bin11101011001010110
320010011111
4131121112
512323111
62325234
71011016
oct353126
9203144
10120406
1182510
125981a
1342a60
1431c46
1525a21
hex1d656

120406 has 16 divisors (see below), whose sum is σ = 212688. Its totient is φ = 50400.

The previous prime is 120401. The next prime is 120413. The reversal of 120406 is 604021.

Adding to 120406 its reverse (604021), we get a palindrome (724427).

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120401) by changing a digit.

120406 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76 + ... + 496.

It is an arithmetic number, because the mean of its divisors is an integer number (13293).

2120406 is an apocalyptic number.

120406 is a deficient number, since it is larger than the sum of its proper divisors (92282).

120406 is a wasteful number, since it uses less digits than its factorization.

120406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 120406 is about 346.9956772065. The cubic root of 120406 is about 49.3798056531.

The spelling of 120406 in words is "one hundred twenty thousand, four hundred six".

Divisors: 1 2 11 13 22 26 143 286 421 842 4631 5473 9262 10946 60203 120406