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30838017 = 371786381
BaseRepresentation
bin111010110100…
…0110100000001
32011000201210210
41311220310001
530343304032
63020544333
7523055520
oct165506401
964021723
1030838017
1116453071
12a3b20a9
136509562
14414a4b7
152a922cc
hex1d68d01

30838017 has 16 divisors (see below), whose sum is σ = 49756032. Its totient is φ = 16584960.

The previous prime is 30837977. The next prime is 30838019. The reversal of 30838017 is 71083803.

It is not a de Polignac number, because 30838017 - 211 = 30835969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30838019) 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 15 ways as a sum of consecutive naturals, for example, 42834 + ... + 43547.

It is an arithmetic number, because the mean of its divisors is an integer number (3109752).

Almost surely, 230838017 is an apocalyptic number.

It is an amenable number.

30838017 is a deficient number, since it is larger than the sum of its proper divisors (18918015).

30838017 is a wasteful number, since it uses less digits than its factorization.

30838017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86408.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 30838017 is about 5553.1988078944. The cubic root of 30838017 is about 313.5899586420.

The spelling of 30838017 in words is "thirty million, eight hundred thirty-eight thousand, seventeen".

Divisors: 1 3 7 17 21 51 119 357 86381 259143 604667 1468477 1814001 4405431 10279339 30838017