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4381497 = 32486833
BaseRepresentation
bin10000101101101100111001
322020121021200
4100231230321
52110201442
6233524413
752146021
oct20555471
98217250
104381497
11252297a
121573709
13ba5403
14820a81
155b834c
hex42db39

4381497 has 6 divisors (see below), whose sum is σ = 6328842. Its totient is φ = 2920992.

The previous prime is 4381493. The next prime is 4381499. The reversal of 4381497 is 7941834.

It is a happy number.

4381497 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4372281 + 9216 = 2091^2 + 96^2 .

It is not a de Polignac number, because 4381497 - 22 = 4381493 is a prime.

It is a super-2 number, since 2×43814972 = 38395031922018, which contains 22 as substring.

4381497 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4381493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 243408 + ... + 243425.

It is an arithmetic number, because the mean of its divisors is an integer number (1054807).

Almost surely, 24381497 is an apocalyptic number.

It is an amenable number.

4381497 is a deficient number, since it is larger than the sum of its proper divisors (1947345).

4381497 is a wasteful number, since it uses less digits than its factorization.

4381497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486839 (or 486836 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 4381497 is about 2093.2025702258. The cubic root of 4381497 is about 163.6342359151.

It can be divided in two parts, 4 and 381497, that added together give a triangular number (381501 = T873).

The spelling of 4381497 in words is "four million, three hundred eighty-one thousand, four hundred ninety-seven".

Divisors: 1 3 9 486833 1460499 4381497