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38980189 = 41579377
BaseRepresentation
bin1001010010110…
…0101001011101
32201100101202201
42110230221131
534434331224
63511251501
7652216603
oct224545135
981311681
1038980189
1120004436
1211079b91
1380ca601
145269873
15364ea44
hex252ca5d

38980189 has 4 divisors (see below), whose sum is σ = 38993724. Its totient is φ = 38966656.

The previous prime is 38980181. The next prime is 38980211. The reversal of 38980189 is 98108983.

38980189 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10272025 + 28708164 = 3205^2 + 5358^2 .

It is a cyclic number.

It is not a de Polignac number, because 38980189 - 23 = 38980181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38980181) 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, 532 + ... + 8845.

It is an arithmetic number, because the mean of its divisors is an integer number (9748431).

Almost surely, 238980189 is an apocalyptic number.

It is an amenable number.

38980189 is a deficient number, since it is larger than the sum of its proper divisors (13535).

38980189 is an equidigital number, since it uses as much as digits as its factorization.

38980189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13534.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 38980189 is about 6243.4116474889. The cubic root of 38980189 is about 339.0637129605.

The spelling of 38980189 in words is "thirty-eight million, nine hundred eighty thousand, one hundred eighty-nine".

Divisors: 1 4157 9377 38980189