Search a number
-
+
38193069 = 312731023
BaseRepresentation
bin1001000110110…
…0011110101101
32122212102001010
42101230132231
534234134234
63442335433
7642431025
oct221543655
978772033
1038193069
111a617022
121095a579
137bb3265
145102a85
1535466e9
hex246c7ad

38193069 has 4 divisors (see below), whose sum is σ = 50924096. Its totient is φ = 25462044.

The previous prime is 38193013. The next prime is 38193083. The reversal of 38193069 is 96039183.

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 not a de Polignac number, because 38193069 - 28 = 38192813 is a prime.

It is a super-2 number, since 2×381930692 = 2917421039277522, 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 (38193269) 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, 6365509 + ... + 6365514.

It is an arithmetic number, because the mean of its divisors is an integer number (12731024).

Almost surely, 238193069 is an apocalyptic number.

It is an amenable number.

38193069 is a deficient number, since it is larger than the sum of its proper divisors (12731027).

38193069 is a wasteful number, since it uses less digits than its factorization.

38193069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12731026.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 38193069 is about 6180.0541259766. The cubic root of 38193069 is about 336.7659591237.

The spelling of 38193069 in words is "thirty-eight million, one hundred ninety-three thousand, sixty-nine".

Divisors: 1 3 12731023 38193069