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38872271 = 192045909
BaseRepresentation
bin1001010001001…
…0010011001111
32201010220201202
42110102103033
534422403041
63505100115
7651260144
oct224222317
981126652
1038872271
111aa40349
121102763b
138090459
14523c3cb
15362ca9b
hex25124cf

38872271 has 4 divisors (see below), whose sum is σ = 40918200. Its totient is φ = 36826344.

The previous prime is 38872259. The next prime is 38872279. The reversal of 38872271 is 17227883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17227883 = 103167261.

It is a cyclic number.

It is not a de Polignac number, because 38872271 - 210 = 38871247 is a prime.

It is a super-2 number, since 2×388722712 = 3022106905394882, 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 (38872279) 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, 1022936 + ... + 1022973.

It is an arithmetic number, because the mean of its divisors is an integer number (10229550).

Almost surely, 238872271 is an apocalyptic number.

38872271 is a deficient number, since it is larger than the sum of its proper divisors (2045929).

38872271 is a wasteful number, since it uses less digits than its factorization.

38872271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045928.

The product of its digits is 37632, while the sum is 38.

The square root of 38872271 is about 6234.7631069673. The cubic root of 38872271 is about 338.7505205531.

The spelling of 38872271 in words is "thirty-eight million, eight hundred seventy-two thousand, two hundred seventy-one".

Divisors: 1 19 2045909 38872271