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38025681 = 312675227
BaseRepresentation
bin1001000100001…
…1100111010001
32122112220102120
42101003213101
534213310211
63435004453
7641133021
oct221034721
978486376
1038025681
111a512291
1210899729
137b55005
14509ba81
153511d06
hex24439d1

38025681 has 4 divisors (see below), whose sum is σ = 50700912. Its totient is φ = 25350452.

The previous prime is 38025619. The next prime is 38025697. The reversal of 38025681 is 18652083.

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 38025681 - 217 = 37894609 is a prime.

It is a super-2 number, since 2×380256812 = 2891904831027522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38025881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6337611 + ... + 6337616.

It is an arithmetic number, because the mean of its divisors is an integer number (12675228).

Almost surely, 238025681 is an apocalyptic number.

It is an amenable number.

38025681 is a deficient number, since it is larger than the sum of its proper divisors (12675231).

38025681 is a wasteful number, since it uses less digits than its factorization.

38025681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12675230.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 38025681 is about 6166.4966553141. The cubic root of 38025681 is about 336.2732594939.

The spelling of 38025681 in words is "thirty-eight million, twenty-five thousand, six hundred eighty-one".

Divisors: 1 3 12675227 38025681