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420614 = 21789139
BaseRepresentation
bin1100110101100000110
3210100222022
41212230012
5101424424
613003142
73401165
oct1465406
9710868
10420614
11268017
121834b2
131195ac
14ad3dc
158495e
hex66b06

420614 has 16 divisors (see below), whose sum is σ = 680400. Its totient is φ = 194304.

The previous prime is 420613. The next prime is 420671. The reversal of 420614 is 416024.

It is a super-2 number, since 2×4206142 = 353832273992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 420592 and 420601.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 420614.

It is not an unprimeable number, because it can be changed into a prime (420613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2957 + ... + 3095.

It is an arithmetic number, because the mean of its divisors is an integer number (42525).

2420614 is an apocalyptic number.

420614 is a deficient number, since it is larger than the sum of its proper divisors (259786).

420614 is a wasteful number, since it uses less digits than its factorization.

420614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 420614 is about 648.5476081214. The cubic root of 420614 is about 74.9251994973.

420614 divided by its sum of digits (17) gives a palindrome (24742).

Adding to 420614 its reverse (416024), we get a palindrome (836638).

The spelling of 420614 in words is "four hundred twenty thousand, six hundred fourteen".

Divisors: 1 2 17 34 89 139 178 278 1513 2363 3026 4726 12371 24742 210307 420614