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38605197 = 312868399
BaseRepresentation
bin1001001101000…
…1000110001101
32200122100101010
42103101012031
534340331242
63455235433
7646065411
oct223210615
980570333
1038605197
111a878724
1210b18b79
137cc8a17
1451acd41
1535c889c
hex24d118d

38605197 has 4 divisors (see below), whose sum is σ = 51473600. Its totient is φ = 25736796.

The previous prime is 38605183. The next prime is 38605241. The reversal of 38605197 is 79150683.

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 38605197 - 27 = 38605069 is a prime.

It is a super-2 number, since 2×386051972 = 2980722470817618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38605117) 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, 6434197 + ... + 6434202.

It is an arithmetic number, because the mean of its divisors is an integer number (12868400).

Almost surely, 238605197 is an apocalyptic number.

It is an amenable number.

38605197 is a deficient number, since it is larger than the sum of its proper divisors (12868403).

38605197 is a wasteful number, since it uses less digits than its factorization.

38605197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12868402.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 38605197 is about 6213.3080561002. The cubic root of 38605197 is about 337.9729358720.

The spelling of 38605197 in words is "thirty-eight million, six hundred five thousand, one hundred ninety-seven".

Divisors: 1 3 12868399 38605197