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120104 = 2315013
BaseRepresentation
bin11101010100101000
320002202022
4131110220
512320404
62324012
71010105
oct352450
9202668
10120104
1182266
1259608
134288a
1431aac
15258be
hex1d528

120104 has 8 divisors (see below), whose sum is σ = 225210. Its totient is φ = 60048.

The previous prime is 120103. The next prime is 120121. The reversal of 120104 is 401021.

It can be written as a sum of positive squares in only one way, i.e., 91204 + 28900 = 302^2 + 170^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (8), and also a Moran number because the ratio is a prime number: 15013 = 120104 / (1 + 2 + 0 + 1 + 0 + 4).

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 120091 and 120100.

It is not an unprimeable number, because it can be changed into a prime (120103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7499 + ... + 7514.

2120104 is an apocalyptic number.

It is an amenable number.

120104 is a deficient number, since it is larger than the sum of its proper divisors (105106).

120104 is a wasteful number, since it uses less digits than its factorization.

120104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15019 (or 15015 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 120104 is about 346.5602400738. The cubic root of 120104 is about 49.3384865975.

Adding to 120104 its reverse (401021), we get a palindrome (521125).

The spelling of 120104 in words is "one hundred twenty thousand, one hundred four", and thus it is an iban number.

Divisors: 1 2 4 8 15013 30026 60052 120104