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38845841 = 262114821
BaseRepresentation
bin1001010000101…
…1110110010001
32201002120110212
42110023312101
534421031331
63504333505
7651120116
oct224136621
981076425
1038845841
111aa22501
1211014295
138081408
14523290d
153624d2b
hex250bd91

38845841 has 4 divisors (see below), whose sum is σ = 38863284. Its totient is φ = 38828400.

The previous prime is 38845831. The next prime is 38845847. The reversal of 38845841 is 14854883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14854883 = 56926107.

It can be written as a sum of positive squares in 2 ways, for example, as 25000000 + 13845841 = 5000^2 + 3721^2 .

It is a cyclic number.

It is not a de Polignac number, because 38845841 - 214 = 38829457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38845847) 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, 4790 + ... + 10031.

It is an arithmetic number, because the mean of its divisors is an integer number (9715821).

Almost surely, 238845841 is an apocalyptic number.

It is an amenable number.

38845841 is a deficient number, since it is larger than the sum of its proper divisors (17443).

38845841 is a wasteful number, since it uses less digits than its factorization.

38845841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17442.

The product of its digits is 122880, while the sum is 41.

The square root of 38845841 is about 6232.6431792619. The cubic root of 38845841 is about 338.6737288287.

The spelling of 38845841 in words is "thirty-eight million, eight hundred forty-five thousand, eight hundred forty-one".

Divisors: 1 2621 14821 38845841