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38071538 = 243632
BaseRepresentation
bin1001000100111…
…0110011110010
32122122020022222
42101032303302
534221242123
63440001042
7641413511
oct221166362
978566288
1038071538
111a54378a
1210900182
137b6cb4b
1450b0678
1535206c8
hex244ecf2

38071538 has 6 divisors (see below), whose sum is σ = 57120399. Its totient is φ = 19031406.

The previous prime is 38071531. The next prime is 38071571. The reversal of 38071538 is 83517083.

38071538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 19035769 + 19035769 = 4363^2 + 4363^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=4363.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38071498 and 38071507.

It is not an unprimeable number, because it can be changed into a prime (38071531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6545 + ... + 10907.

Almost surely, 238071538 is an apocalyptic number.

38071538 is a deficient number, since it is larger than the sum of its proper divisors (19048861).

38071538 is an frugal number, since it uses more digits than its factorization.

38071538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728 (or 4365 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 38071538 is about 6170.2137726338. The cubic root of 38071538 is about 336.4083812313.

The spelling of 38071538 in words is "thirty-eight million, seventy-one thousand, five hundred thirty-eight".

Divisors: 1 2 4363 8726 19035769 38071538