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38315853 = 3241103837
BaseRepresentation
bin1001001000101…
…0011101001101
32200002122110200
42102022131031
534302101403
63445124113
7643452012
oct222123515
980078420
1038315853
111a6a02a4
12109b9639
137c27104
145135709
15356cca3
hex248a74d

38315853 has 12 divisors (see below), whose sum is σ = 56695548. Its totient is φ = 24920640.

The previous prime is 38315843. The next prime is 38315899. The reversal of 38315853 is 35851383.

It can be written as a sum of positive squares in 2 ways, for example, as 11410884 + 26904969 = 3378^2 + 5187^2 .

It is not a de Polignac number, because 38315853 - 217 = 38184781 is a prime.

It is a super-2 number, since 2×383158532 = 2936209182235218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38315803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51550 + ... + 52287.

It is an arithmetic number, because the mean of its divisors is an integer number (4724629).

Almost surely, 238315853 is an apocalyptic number.

It is an amenable number.

38315853 is a deficient number, since it is larger than the sum of its proper divisors (18379695).

38315853 is a wasteful number, since it uses less digits than its factorization.

38315853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103884 (or 103881 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 38315853 is about 6189.9800484331. The cubic root of 38315853 is about 337.1264542009.

The spelling of 38315853 in words is "thirty-eight million, three hundred fifteen thousand, eight hundred fifty-three".

Divisors: 1 3 9 41 123 369 103837 311511 934533 4257317 12771951 38315853