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30871341 = 332989443
BaseRepresentation
bin111010111000…
…0111100101101
32011002102112000
41311300330231
530400340331
63021402513
7523254624
oct165607455
964072460
1030871341
1116476106
12a409439
13651b787
1441586bb
152a9c0e6
hex1d70f2d

30871341 has 32 divisors (see below), whose sum is σ = 47952000. Its totient is φ = 19603584.

The previous prime is 30871289. The next prime is 30871343. The reversal of 30871341 is 14317803.

It is not a de Polignac number, because 30871341 - 27 = 30871213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30871343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69466 + ... + 69908.

It is an arithmetic number, because the mean of its divisors is an integer number (1498500).

Almost surely, 230871341 is an apocalyptic number.

It is an amenable number.

30871341 is a deficient number, since it is larger than the sum of its proper divisors (17080659).

30871341 is a wasteful number, since it uses less digits than its factorization.

30871341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 30871341 is about 5556.1984305818. The cubic root of 30871341 is about 313.7028745695.

The spelling of 30871341 in words is "thirty million, eight hundred seventy-one thousand, three hundred forty-one".

Divisors: 1 3 9 27 29 87 89 261 267 443 783 801 1329 2403 2581 3987 7743 11961 12847 23229 38541 39427 69687 115623 118281 346869 354843 1064529 1143383 3430149 10290447 30871341