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38252729 = 311379007
BaseRepresentation
bin1001000111101…
…1000010111001
32122222102212202
42101323002321
534243041404
63443515545
7643066664
oct221730271
978872782
1038252729
111a657929
1210988bb5
137c04468
14511a6db
15355921e
hex247b0b9

38252729 has 8 divisors (see below), whose sum is σ = 39779328. Its totient is φ = 36744480.

The previous prime is 38252723. The next prime is 38252759. The reversal of 38252729 is 92725283.

38252729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38252729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38252692 and 38252701.

It is not an unprimeable number, because it can be changed into a prime (38252723) 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 7 ways as a sum of consecutive naturals, for example, 257 + ... + 8750.

It is an arithmetic number, because the mean of its divisors is an integer number (4972416).

Almost surely, 238252729 is an apocalyptic number.

It is an amenable number.

38252729 is a deficient number, since it is larger than the sum of its proper divisors (1526599).

38252729 is a wasteful number, since it uses less digits than its factorization.

38252729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175.

The product of its digits is 60480, while the sum is 38.

The square root of 38252729 is about 6184.8790610650. The cubic root of 38252729 is about 336.9412178407.

The spelling of 38252729 in words is "thirty-eight million, two hundred fifty-two thousand, seven hundred twenty-nine".

Divisors: 1 31 137 4247 9007 279217 1233959 38252729