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38269393 = 263145511
BaseRepresentation
bin1001000111111…
…1000111010001
32200000021201221
42101333013101
534244110033
63444125041
7643166401
oct221770721
980007657
1038269393
111a6693a8
1210996781
137c0bc16
145122801
15355e12d
hex247f1d1

38269393 has 4 divisors (see below), whose sum is σ = 38415168. Its totient is φ = 38123620.

The previous prime is 38269381. The next prime is 38269457. The reversal of 38269393 is 39396283.

It is a happy number.

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 not a de Polignac number, because 38269393 - 225 = 4714961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38269993) 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, 72493 + ... + 73018.

It is an arithmetic number, because the mean of its divisors is an integer number (9603792).

Almost surely, 238269393 is an apocalyptic number.

It is an amenable number.

38269393 is a deficient number, since it is larger than the sum of its proper divisors (145775).

38269393 is a wasteful number, since it uses less digits than its factorization.

38269393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145774.

The product of its digits is 209952, while the sum is 43.

The square root of 38269393 is about 6186.2260708771. The cubic root of 38269393 is about 336.9901378653.

The spelling of 38269393 in words is "thirty-eight million, two hundred sixty-nine thousand, three hundred ninety-three".

Divisors: 1 263 145511 38269393