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38486977 = 241159697
BaseRepresentation
bin1001001011010…
…0001111000001
32200102100012121
42102310033001
534323040402
63452524241
7645063634
oct222641701
980370177
1038486977
111a7a7921
1210a80681
137c86c79
14517bc1b
1535a3837
hex24b43c1

38486977 has 4 divisors (see below), whose sum is σ = 38646916. Its totient is φ = 38327040.

The previous prime is 38486971. The next prime is 38487019. The reversal of 38486977 is 77968483.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77968483 = 307253969.

It can be written as a sum of positive squares in 2 ways, for example, as 10439361 + 28047616 = 3231^2 + 5296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38486977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38486971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79608 + ... + 80089.

It is an arithmetic number, because the mean of its divisors is an integer number (9661729).

Almost surely, 238486977 is an apocalyptic number.

It is an amenable number.

38486977 is a deficient number, since it is larger than the sum of its proper divisors (159939).

38486977 is a wasteful number, since it uses less digits than its factorization.

38486977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159938.

The product of its digits is 2032128, while the sum is 52.

The square root of 38486977 is about 6203.7873109900. The cubic root of 38486977 is about 337.6275936403.

The spelling of 38486977 in words is "thirty-eight million, four hundred eighty-six thousand, nine hundred seventy-seven".

Divisors: 1 241 159697 38486977