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3724425 = 325216553
BaseRepresentation
bin1110001101010010001001
321000012221200
432031102021
51423140200
6211454413
743441245
oct16152211
97005850
103724425
112114241
1212b7409
13a05303
146cd425
154d8800
hex38d489

3724425 has 18 divisors (see below), whose sum is σ = 6671262. Its totient is φ = 1986240.

The previous prime is 3724423. The next prime is 3724429. The reversal of 3724425 is 5244273.

It can be written as a sum of positive squares in 3 ways, for example, as 992016 + 2732409 = 996^2 + 1653^2 .

It is not a de Polignac number, because 3724425 - 21 = 3724423 is a prime.

It is a d-powerful number, because it can be written as 313 + 72 + 215 + 43 + 43 + 221 + 5 .

It is not an unprimeable number, because it can be changed into a prime (3724423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8052 + ... + 8501.

Almost surely, 23724425 is an apocalyptic number.

It is an amenable number.

3724425 is a deficient number, since it is larger than the sum of its proper divisors (2946837).

3724425 is a wasteful number, since it uses less digits than its factorization.

3724425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16569 (or 16561 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 3724425 is about 1929.8769390819. The cubic root of 3724425 is about 155.0076305643.

Adding to 3724425 its reverse (5244273), we get a palindrome (8968698).

The spelling of 3724425 in words is "three million, seven hundred twenty-four thousand, four hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 16553 49659 82765 148977 248295 413825 744885 1241475 3724425