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4380869 = 10614129
BaseRepresentation
bin10000101101100011000101
322020120102102
4100231203011
52110141434
6233521445
752144133
oct20554305
98216372
104380869
112522459
121573285
13ba503c
14820753
155b807e
hex42d8c5

4380869 has 4 divisors (see below), whose sum is σ = 4386060. Its totient is φ = 4375680.

The previous prime is 4380853. The next prime is 4380881. The reversal of 4380869 is 9680834.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9680834 = 24840417.

It can be written as a sum of positive squares in 2 ways, for example, as 2656900 + 1723969 = 1630^2 + 1313^2 .

It is a cyclic number.

It is not a de Polignac number, because 4380869 - 24 = 4380853 is a prime.

It is a super-2 number, since 2×43808692 = 38384026390322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4380839) 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, 1004 + ... + 3125.

It is an arithmetic number, because the mean of its divisors is an integer number (1096515).

Almost surely, 24380869 is an apocalyptic number.

It is an amenable number.

4380869 is a deficient number, since it is larger than the sum of its proper divisors (5191).

4380869 is a wasteful number, since it uses less digits than its factorization.

4380869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 4380869 is about 2093.0525554797. The cubic root of 4380869 is about 163.6264176428.

The spelling of 4380869 in words is "four million, three hundred eighty thousand, eight hundred sixty-nine".

Divisors: 1 1061 4129 4380869