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38045169 = 3213813061
BaseRepresentation
bin1001000100100…
…0010111110001
32122120220011100
42101020113301
534214421134
63435235013
7641243601
oct221102761
978526140
1038045169
111a525998
12108a8a69
137b60b46
1450a4c01
153517999
hex24485f1

38045169 has 12 divisors (see below), whose sum is σ = 55011892. Its totient is φ = 25336800.

The previous prime is 38045131. The next prime is 38045207. The reversal of 38045169 is 96154083.

It is an interprime number because it is at equal distance from previous prime (38045131) and next prime (38045207).

It can be written as a sum of positive squares in 2 ways, for example, as 28515600 + 9529569 = 5340^2 + 3087^2 .

It is not a de Polignac number, because 38045169 - 27 = 38045041 is a prime.

It is a super-2 number, since 2×380451692 = 2894869768477122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38045069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10899 + ... + 13959.

Almost surely, 238045169 is an apocalyptic number.

It is an amenable number.

38045169 is a deficient number, since it is larger than the sum of its proper divisors (16966723).

38045169 is a wasteful number, since it uses less digits than its factorization.

38045169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4448 (or 4445 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 38045169 is about 6168.0766045827. The cubic root of 38045169 is about 336.3306958888.

The spelling of 38045169 in words is "thirty-eight million, forty-five thousand, one hundred sixty-nine".

Divisors: 1 3 9 1381 3061 4143 9183 12429 27549 4227241 12681723 38045169