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38481269 = 292713147
BaseRepresentation
bin1001001011001…
…0110101110101
32200102001101012
42102302311311
534322400034
63452442005
7645041201
oct222626565
980361335
1038481269
111a7a3602
1210a79305
137c844a8
145179b01
1535a1cce
hex24b2d75

38481269 has 4 divisors (see below), whose sum is σ = 38497344. Its totient is φ = 38465196.

The previous prime is 38481239. The next prime is 38481271. The reversal of 38481269 is 96218483.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96218483 = 113851491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38481269 is a prime.

It is a super-2 number, since 2×384812692 = 2961616127700722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38481229) 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, 3647 + ... + 9500.

It is an arithmetic number, because the mean of its divisors is an integer number (9624336).

Almost surely, 238481269 is an apocalyptic number.

It is an amenable number.

38481269 is a deficient number, since it is larger than the sum of its proper divisors (16075).

38481269 is a wasteful number, since it uses less digits than its factorization.

38481269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16074.

The product of its digits is 82944, while the sum is 41.

The square root of 38481269 is about 6203.3272523703. The cubic root of 38481269 is about 337.6109016427.

The spelling of 38481269 in words is "thirty-eight million, four hundred eighty-one thousand, two hundred sixty-nine".

Divisors: 1 2927 13147 38481269