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38853871 = 75550553
BaseRepresentation
bin1001010000110…
…1110011101111
32201002222111021
42110031303233
534421310441
63504435011
7651152410
oct224156357
981088437
1038853871
111aa28541
1211018a67
138084c74
145235807
1536273d1
hex250dcef

38853871 has 4 divisors (see below), whose sum is σ = 44404432. Its totient is φ = 33303312.

The previous prime is 38853869. The next prime is 38853883. The reversal of 38853871 is 17835883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17835883 = 131371991.

It is not a de Polignac number, because 38853871 - 21 = 38853869 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 (38853671) 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, 2775270 + ... + 2775283.

It is an arithmetic number, because the mean of its divisors is an integer number (11101108).

Almost surely, 238853871 is an apocalyptic number.

38853871 is a deficient number, since it is larger than the sum of its proper divisors (5550561).

38853871 is an equidigital number, since it uses as much as digits as its factorization.

38853871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5550560.

The product of its digits is 161280, while the sum is 43.

The square root of 38853871 is about 6233.2873349461. The cubic root of 38853871 is about 338.6970634818.

The spelling of 38853871 in words is "thirty-eight million, eight hundred fifty-three thousand, eight hundred seventy-one".

Divisors: 1 7 5550553 38853871