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4007138 = 217196203
BaseRepresentation
bin1111010010010011100010
321112120202112
433102103202
52011212023
6221515322
746026422
oct17222342
97476675
104007138
112297693
121412b42
13aa3bb5
14764482
15542478
hex3d24e2

4007138 has 16 divisors (see below), whose sum is σ = 6700320. Its totient is φ = 1786176.

The previous prime is 4007131. The next prime is 4007141. The reversal of 4007138 is 8317004.

It is a happy number.

4007138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4007131) 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 7 ways as a sum of consecutive naturals, for example, 2456 + ... + 3747.

It is an arithmetic number, because the mean of its divisors is an integer number (418770).

Almost surely, 24007138 is an apocalyptic number.

4007138 is a deficient number, since it is larger than the sum of its proper divisors (2693182).

4007138 is a wasteful number, since it uses less digits than its factorization.

4007138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6241.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 4007138 is about 2001.7837045995. The cubic root of 4007138 is about 158.8344729919.

The spelling of 4007138 in words is "four million, seven thousand, one hundred thirty-eight".

Divisors: 1 2 17 19 34 38 323 646 6203 12406 105451 117857 210902 235714 2003569 4007138