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30327156 = 22332329421
BaseRepresentation
bin111001110110…
…0000101110100
32010001210001000
41303230011310
530230432111
63002003300
7515530236
oct163540564
963053030
1030327156
1116134272
12a1a6530
13638ab82
144056256
1529e0c56
hex1cec174

30327156 has 96 divisors (see below), whose sum is σ = 85075200. Its totient is φ = 9313920.

The previous prime is 30327151. The next prime is 30327181. The reversal of 30327156 is 65172303.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30327151) 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 31 ways as a sum of consecutive naturals, for example, 71826 + ... + 72246.

It is an arithmetic number, because the mean of its divisors is an integer number (886200).

Almost surely, 230327156 is an apocalyptic number.

30327156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30327156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42537600).

30327156 is an abundant number, since it is smaller than the sum of its proper divisors (54748044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30327156 is a wasteful number, since it uses less digits than its factorization.

30327156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 30327156 is about 5507.0097148997. The cubic root of 30327156 is about 311.8486692148.

Adding to 30327156 its reverse (65172303), we get a palindrome (95499459).

The spelling of 30327156 in words is "thirty million, three hundred twenty-seven thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 23 27 29 36 46 54 58 69 87 92 108 116 138 174 207 261 276 348 414 421 522 621 667 783 828 842 1044 1242 1263 1334 1566 1684 2001 2484 2526 2668 3132 3789 4002 5052 6003 7578 8004 9683 11367 12006 12209 15156 18009 19366 22734 24012 24418 29049 36018 36627 38732 45468 48836 58098 72036 73254 87147 109881 116196 146508 174294 219762 261441 280807 329643 348588 439524 522882 561614 659286 842421 1045764 1123228 1318572 1684842 2527263 3369684 5054526 7581789 10109052 15163578 30327156