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4206425 = 521131489
BaseRepresentation
bin10000000010111101011001
321220201010112
4100002331121
52034101200
6230054105
750516426
oct20027531
97821115
104206425
112413393
1214aa335
13b43812
147b6d4d
15581535
hex402f59

4206425 has 12 divisors (see below), whose sum is σ = 5265660. Its totient is φ = 3333120.

The previous prime is 4206413. The next prime is 4206427. The reversal of 4206425 is 5246024.

It can be written as a sum of positive squares in 6 ways, for example, as 1420864 + 2785561 = 1192^2 + 1669^2 .

It is not a de Polignac number, because 4206425 - 24 = 4206409 is a prime.

It is a super-2 number, since 2×42064252 = 35388022561250, which contains 22 as substring.

It is a d-powerful number, because it can be written as 44 + 29 + 0 + 62 + 411 + 213 + 55 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4206425.

It is not an unprimeable number, because it can be changed into a prime (4206427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2081 + ... + 3569.

It is an arithmetic number, because the mean of its divisors is an integer number (438805).

Almost surely, 24206425 is an apocalyptic number.

It is an amenable number.

4206425 is a deficient number, since it is larger than the sum of its proper divisors (1059235).

4206425 is a wasteful number, since it uses less digits than its factorization.

4206425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612 (or 1607 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 4206425 is about 2050.9570936516. The cubic root of 4206425 is about 161.4250947418.

The spelling of 4206425 in words is "four million, two hundred six thousand, four hundred twenty-five".

Divisors: 1 5 25 113 565 1489 2825 7445 37225 168257 841285 4206425