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38158130 = 253815813
BaseRepresentation
bin1001000110001…
…1111100110010
32122210122010002
42101203330302
534232030010
63441510002
7642224123
oct221437462
978718102
1038158130
111a5a284a
1210942302
137ba039a
1450d404a
15353b1a5
hex2463f32

38158130 has 8 divisors (see below), whose sum is σ = 68684652. Its totient is φ = 15263248.

The previous prime is 38158121. The next prime is 38158139. The reversal of 38158130 is 3185183.

38158130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38158121) and next prime (38158139).

It can be written as a sum of positive squares in 2 ways, for example, as 37982569 + 175561 = 6163^2 + 419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 38158093 and 38158102.

It is not an unprimeable number, because it can be changed into a prime (38158139) 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 3 ways as a sum of consecutive naturals, for example, 1907897 + ... + 1907916.

Almost surely, 238158130 is an apocalyptic number.

38158130 is a deficient number, since it is larger than the sum of its proper divisors (30526522).

38158130 is a wasteful number, since it uses less digits than its factorization.

38158130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815820.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 38158130 is about 6177.2267240243. The cubic root of 38158130 is about 336.6632366848.

The spelling of 38158130 in words is "thirty-eight million, one hundred fifty-eight thousand, one hundred thirty".

Divisors: 1 2 5 10 3815813 7631626 19079065 38158130