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38213077 = 75459011
BaseRepresentation
bin1001000111000…
…1010111010101
32122220102111011
42101301113111
534240304302
63443012221
7642543250
oct221612725
978812434
1038213077
111a630061
121096a071
137bbc3b6
14510a097
15354c5d7
hex24715d5

38213077 has 4 divisors (see below), whose sum is σ = 43672096. Its totient is φ = 32754060.

The previous prime is 38213027. The next prime is 38213089. The reversal of 38213077 is 77031283.

38213077 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 Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38213077 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 (38213027) 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, 2729499 + ... + 2729512.

It is an arithmetic number, because the mean of its divisors is an integer number (10918024).

Almost surely, 238213077 is an apocalyptic number.

It is an amenable number.

38213077 is a deficient number, since it is larger than the sum of its proper divisors (5459019).

38213077 is an equidigital number, since it uses as much as digits as its factorization.

38213077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459018.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 38213077 is about 6181.6726700789. The cubic root of 38213077 is about 336.8247554553.

The spelling of 38213077 in words is "thirty-eight million, two hundred thirteen thousand, seventy-seven".

Divisors: 1 7 5459011 38213077