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38034193 = 281135353
BaseRepresentation
bin1001000100010…
…1101100010001
32122120100002211
42101011230101
534214043233
63435112121
7641166601
oct221055421
978510084
1038034193
111a51871a
12108a2641
137b58b52
1450a0c01
1535145cd
hex2445b11

38034193 has 4 divisors (see below), whose sum is σ = 38169828. Its totient is φ = 37898560.

The previous prime is 38034163. The next prime is 38034197. The reversal of 38034193 is 39143083.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25979409 + 12054784 = 5097^2 + 3472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38034193 is a prime.

It is a super-2 number, since 2×380341932 = 2893199674322498, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38034197) 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, 67396 + ... + 67957.

It is an arithmetic number, because the mean of its divisors is an integer number (9542457).

Almost surely, 238034193 is an apocalyptic number.

38034193 is the 3297-th centered heptagonal number.

It is an amenable number.

38034193 is a deficient number, since it is larger than the sum of its proper divisors (135635).

38034193 is a wasteful number, since it uses less digits than its factorization.

38034193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135634.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 38034193 is about 6167.1867978844. The cubic root of 38034193 is about 336.2983490681.

The spelling of 38034193 in words is "thirty-eight million, thirty-four thousand, one hundred ninety-three".

Divisors: 1 281 135353 38034193