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2050420 = 225157653
BaseRepresentation
bin111110100100101110100
310212011122111
413310211310
51011103140
6111540404
723266621
oct7644564
93764574
102050420
111180569
1282a704
1356a388
143b5348
152a77ea
hex1f4974

2050420 has 24 divisors (see below), whose sum is σ = 4339944. Its totient is φ = 813696.

The previous prime is 2050417. The next prime is 2050459. The reversal of 2050420 is 240502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11236 + 2039184 = 106^2 + 1428^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2050420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2814 + ... + 3466.

It is an arithmetic number, because the mean of its divisors is an integer number (180831).

22050420 is an apocalyptic number.

2050420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2050420 is an abundant number, since it is smaller than the sum of its proper divisors (2289524).

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

2050420 is a wasteful number, since it uses less digits than its factorization.

2050420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 817 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 2050420 is about 1431.9287691781. The cubic root of 2050420 is about 127.0420841372.

Adding to 2050420 its reverse (240502), we get a palindrome (2290922).

The spelling of 2050420 in words is "two million, fifty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 157 314 628 653 785 1306 1570 2612 3140 3265 6530 13060 102521 205042 410084 512605 1025210 2050420