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38678223 = 312892741
BaseRepresentation
bin1001001110001…
…0111011001111
32200210001112210
42103202323033
534400200343
63501001503
7646521333
oct223427317
980701483
1038678223
111a918581
1210b53293
13802302c
1451cb7c3
1535e0333
hex24e2ecf

38678223 has 4 divisors (see below), whose sum is σ = 51570968. Its totient is φ = 25785480.

The previous prime is 38678221. The next prime is 38678267. The reversal of 38678223 is 32287683.

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: 32287683 = 310762561.

It is not a de Polignac number, because 38678223 - 21 = 38678221 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 (38678221) 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, 6446368 + ... + 6446373.

It is an arithmetic number, because the mean of its divisors is an integer number (12892742).

Almost surely, 238678223 is an apocalyptic number.

38678223 is a deficient number, since it is larger than the sum of its proper divisors (12892745).

38678223 is a wasteful number, since it uses less digits than its factorization.

38678223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12892744.

The product of its digits is 96768, while the sum is 39.

The square root of 38678223 is about 6219.1818593767. The cubic root of 38678223 is about 338.1859060393.

It can be divided in two parts, 3867 and 8223, that added together give a triangular number (12090 = T155).

The spelling of 38678223 in words is "thirty-eight million, six hundred seventy-eight thousand, two hundred twenty-three".

Divisors: 1 3 12892741 38678223