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38323231 = 371035763
BaseRepresentation
bin1001001000110…
…0010000011111
32200010000120221
42102030100133
534302320411
63445222211
7643512352
oct222142037
980100527
1038323231
111a6a58a1
1210a01967
137c2a58b
145138299
153570071
hex248c41f

38323231 has 4 divisors (see below), whose sum is σ = 39359032. Its totient is φ = 37287432.

The previous prime is 38323217. The next prime is 38323237. The reversal of 38323231 is 13232383.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38323231 - 215 = 38290463 is a prime.

It is a super-2 number, since 2×383232312 = 2937340068558722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38323196 and 38323205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38323237) 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, 517845 + ... + 517918.

It is an arithmetic number, because the mean of its divisors is an integer number (9839758).

Almost surely, 238323231 is an apocalyptic number.

38323231 is a deficient number, since it is larger than the sum of its proper divisors (1035801).

38323231 is a wasteful number, since it uses less digits than its factorization.

38323231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035800.

The product of its digits is 2592, while the sum is 25.

The square root of 38323231 is about 6190.5759828953. The cubic root of 38323231 is about 337.1480915403.

The spelling of 38323231 in words is "thirty-eight million, three hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 37 1035763 38323231