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38678289 = 313991751
BaseRepresentation
bin1001001110001…
…0111100010001
32200210001122020
42103202330101
534400201124
63501002053
7646521456
oct223427421
980701566
1038678289
111a918631
1210b53329
138023080
1451cb82d
1535e0379
hex24e2f11

38678289 has 8 divisors (see below), whose sum is σ = 55538112. Its totient is φ = 23802000.

The previous prime is 38678267. The next prime is 38678291. The reversal of 38678289 is 98287683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38678289 - 27 = 38678161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38678219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495837 + ... + 495914.

It is an arithmetic number, because the mean of its divisors is an integer number (6942264).

Almost surely, 238678289 is an apocalyptic number.

38678289 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

38678289 is a deficient number, since it is larger than the sum of its proper divisors (16859823).

38678289 is a wasteful number, since it uses less digits than its factorization.

38678289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991767.

The product of its digits is 1161216, while the sum is 51.

The square root of 38678289 is about 6219.1871655386. The cubic root of 38678289 is about 338.1860983978.

The spelling of 38678289 in words is "thirty-eight million, six hundred seventy-eight thousand, two hundred eighty-nine".

Divisors: 1 3 13 39 991751 2975253 12892763 38678289