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38944361 = 291342909
BaseRepresentation
bin1001010010001…
…1111001101001
32201021120121202
42110203321221
534432204421
63510413545
7652010261
oct224437151
981246552
1038944361
111aa8a525
12110612b5
1380b7201
14525a7a1
15364410b
hex2523e69

38944361 has 4 divisors (see below), whose sum is σ = 40287300. Its totient is φ = 37601424.

The previous prime is 38944351. The next prime is 38944363. The reversal of 38944361 is 16344983.

38944361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25694761 + 13249600 = 5069^2 + 3640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38944361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38944363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671426 + ... + 671483.

It is an arithmetic number, because the mean of its divisors is an integer number (10071825).

Almost surely, 238944361 is an apocalyptic number.

It is an amenable number.

38944361 is a deficient number, since it is larger than the sum of its proper divisors (1342939).

38944361 is a wasteful number, since it uses less digits than its factorization.

38944361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342938.

The product of its digits is 62208, while the sum is 38.

The square root of 38944361 is about 6240.5417232801. The cubic root of 38944361 is about 338.9597995043.

The spelling of 38944361 in words is "thirty-eight million, nine hundred forty-four thousand, three hundred sixty-one".

Divisors: 1 29 1342909 38944361