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420260 = 22521013
BaseRepresentation
bin1100110100110100100
3210100111012
41212212210
5101422020
613001352
73400151
oct1464644
9710435
10420260
11267825
12183258
13119399
14ad228
15847c5
hex669a4

420260 has 12 divisors (see below), whose sum is σ = 882588. Its totient is φ = 168096.

The previous prime is 420253. The next prime is 420263. The reversal of 420260 is 62024.

It can be written as a sum of positive squares in 2 ways, for example, as 43264 + 376996 = 208^2 + 614^2 .

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 420260.

It is not an unprimeable number, because it can be changed into a prime (420263) by changing a digit.

420260 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 3 ways as a sum of consecutive naturals, for example, 10487 + ... + 10526.

It is an arithmetic number, because the mean of its divisors is an integer number (73549).

2420260 is an apocalyptic number.

It is an amenable number.

420260 is an abundant number, since it is smaller than the sum of its proper divisors (462328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420260 is a wasteful number, since it uses less digits than its factorization.

420260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21022 (or 21020 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 420260 is about 648.2746331610. The cubic root of 420260 is about 74.9041739133.

Adding to 420260 its reverse (62024), we get a palindrome (482284).

The spelling of 420260 in words is "four hundred twenty thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 21013 42026 84052 105065 210130 420260