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420104 = 23173089
BaseRepresentation
bin1100110100100001000
3210100021102
41212210020
5101420404
613000532
73366536
oct1464410
9710242
10420104
112676a3
12183148
131192a9
14ad156
158471e
hex66908

420104 has 16 divisors (see below), whose sum is σ = 834300. Its totient is φ = 197632.

The previous prime is 420103. The next prime is 420149. The reversal of 420104 is 401024.

It can be written as a sum of positive squares in 2 ways, for example, as 357604 + 62500 = 598^2 + 250^2 .

It is not an unprimeable number, because it can be changed into a prime (420103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1409 + ... + 1680.

2420104 is an apocalyptic number.

It is an amenable number.

420104 is a deficient number, since it is larger than the sum of its proper divisors (414196).

420104 is a wasteful number, since it uses less digits than its factorization.

420104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112 (or 3108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 420104 is about 648.1543026163. The cubic root of 420104 is about 74.8949046535.

Adding to 420104 its reverse (401024), we get a palindrome (821128).

The spelling of 420104 in words is "four hundred twenty thousand, one hundred four", and thus it is an iban number.

Divisors: 1 2 4 8 17 34 68 136 3089 6178 12356 24712 52513 105026 210052 420104