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4425140 = 225972281
BaseRepresentation
bin10000111000010110110100
322022211011002
4100320112310
52113101030
6234502432
752420166
oct20702664
98284132
104425140
112552745
121594a18
13bbc235
14832936
155c6245
hex4385b4

4425140 has 24 divisors (see below), whose sum is σ = 9392712. Its totient is φ = 1751040.

The previous prime is 4425133. The next prime is 4425143. The reversal of 4425140 is 415244.

It can be written as a sum of positive squares in 4 ways, for example, as 512656 + 3912484 = 716^2 + 1978^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4425143) 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, 800 + ... + 3080.

It is an arithmetic number, because the mean of its divisors is an integer number (391363).

Almost surely, 24425140 is an apocalyptic number.

It is an amenable number.

4425140 is an abundant number, since it is smaller than the sum of its proper divisors (4967572).

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

4425140 is a wasteful number, since it uses less digits than its factorization.

4425140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387 (or 2385 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 4425140 is about 2103.6016733213. The cubic root of 4425140 is about 164.1757485363.

The spelling of 4425140 in words is "four million, four hundred twenty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 2281 4562 9124 11405 22810 45620 221257 442514 885028 1106285 2212570 4425140