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38235513 = 312745171
BaseRepresentation
bin1001000111011…
…0110101111001
32122221120021010
42101312311321
534242014023
63443304133
7642665541
oct221666571
978846233
1038235513
111a6459a8
121097b049
137bc9684
145114321
153554093
hex2476d79

38235513 has 4 divisors (see below), whose sum is σ = 50980688. Its totient is φ = 25490340.

The previous prime is 38235511. The next prime is 38235517. The reversal of 38235513 is 31553283.

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 not a de Polignac number, because 38235513 - 21 = 38235511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38235511) 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, 6372583 + ... + 6372588.

It is an arithmetic number, because the mean of its divisors is an integer number (12745172).

Almost surely, 238235513 is an apocalyptic number.

It is an amenable number.

38235513 is a deficient number, since it is larger than the sum of its proper divisors (12745175).

38235513 is a wasteful number, since it uses less digits than its factorization.

38235513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12745174.

The product of its digits is 10800, while the sum is 30.

The square root of 38235513 is about 6183.4871229752. The cubic root of 38235513 is about 336.8906624023.

Adding to 38235513 its reverse (31553283), we get a palindrome (69788796).

The spelling of 38235513 in words is "thirty-eight million, two hundred thirty-five thousand, five hundred thirteen".

Divisors: 1 3 12745171 38235513