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38745853 = 49977647
BaseRepresentation
bin1001001111001…
…1011011111101
32200220111022121
42103303123331
534404331403
63502242541
7650222446
oct223633375
980814277
1038745853
111a964373
1210b86451
138047a53
1452082cd
1536053bd
hex24f36fd

38745853 has 4 divisors (see below), whose sum is σ = 38824000. Its totient is φ = 38667708.

The previous prime is 38745841. The next prime is 38745857. The reversal of 38745853 is 35854783.

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 a cyclic number.

It is not a de Polignac number, because 38745853 - 25 = 38745821 is a prime.

It is a super-2 number, since 2×387458532 = 3002482249395218, 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 (38745857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38325 + ... + 39322.

It is an arithmetic number, because the mean of its divisors is an integer number (9706000).

Almost surely, 238745853 is an apocalyptic number.

It is an amenable number.

38745853 is a deficient number, since it is larger than the sum of its proper divisors (78147).

38745853 is an equidigital number, since it uses as much as digits as its factorization.

38745853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78146.

The product of its digits is 403200, while the sum is 43.

The square root of 38745853 is about 6224.6166950263. The cubic root of 38745853 is about 338.3829005708.

The spelling of 38745853 in words is "thirty-eight million, seven hundred forty-five thousand, eight hundred fifty-three".

Divisors: 1 499 77647 38745853