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4287620 = 225214381
BaseRepresentation
bin10000010110110010000100
322001211111202
4100112302010
52044200440
6231522032
751305231
oct20266204
98054452
104287620
112469397
121529318
13b7176c
147d8788
1559a615
hex416c84

4287620 has 12 divisors (see below), whose sum is σ = 9004044. Its totient is φ = 1715040.

The previous prime is 4287617. The next prime is 4287623. The reversal of 4287620 is 267824.

It is an interprime number because it is at equal distance from previous prime (4287617) and next prime (4287623).

It can be written as a sum of positive squares in 2 ways, for example, as 2502724 + 1784896 = 1582^2 + 1336^2 .

It is not an unprimeable number, because it can be changed into a prime (4287623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107171 + ... + 107210.

It is an arithmetic number, because the mean of its divisors is an integer number (750337).

Almost surely, 24287620 is an apocalyptic number.

It is an amenable number.

4287620 is an abundant number, since it is smaller than the sum of its proper divisors (4716424).

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

4287620 is a wasteful number, since it uses less digits than its factorization.

4287620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214390 (or 214388 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 4287620 is about 2070.6569005994. The cubic root of 4287620 is about 162.4571247832.

The spelling of 4287620 in words is "four million, two hundred eighty-seven thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 214381 428762 857524 1071905 2143810 4287620