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38536213 = 43896191
BaseRepresentation
bin1001001100000…
…0010000010101
32200111211202011
42103000100111
534331124323
63453544221
7645360322
oct223002025
980454664
1038536213
111a830911
1210aa5071
137ca34c1
145191b49
1535b320d
hex24c0415

38536213 has 4 divisors (see below), whose sum is σ = 39432448. Its totient is φ = 37639980.

The previous prime is 38536207. The next prime is 38536217. The reversal of 38536213 is 31263583.

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: 31263583 = 132404891.

It is a cyclic number.

It is not a de Polignac number, because 38536213 - 25 = 38536181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38536217) 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, 448053 + ... + 448138.

It is an arithmetic number, because the mean of its divisors is an integer number (9858112).

Almost surely, 238536213 is an apocalyptic number.

It is an amenable number.

38536213 is a deficient number, since it is larger than the sum of its proper divisors (896235).

38536213 is an equidigital number, since it uses as much as digits as its factorization.

38536213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896234.

The product of its digits is 12960, while the sum is 31.

The square root of 38536213 is about 6207.7542638220. The cubic root of 38536213 is about 337.7715068096.

Adding to 38536213 its reverse (31263583), we get a palindrome (69799796).

The spelling of 38536213 in words is "thirty-eight million, five hundred thirty-six thousand, two hundred thirteen".

Divisors: 1 43 896191 38536213