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30159156 = 223171931251
BaseRepresentation
bin111001100001…
…1000100110100
32002202020120210
41303003010310
530210043111
62554225420
7514230366
oct163030464
962666523
1030159156
111602a025
12a125270
13632c571
144010d36
1529ab0a6
hex1cc3134

30159156 has 96 divisors (see below), whose sum is σ = 81285120. Its totient is φ = 8640000.

The previous prime is 30159133. The next prime is 30159203. The reversal of 30159156 is 65195103.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 120031 + ... + 120281.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 230159156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30159156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40642560).

30159156 is an abundant number, since it is smaller than the sum of its proper divisors (51125964).

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

30159156 is a wasteful number, since it uses less digits than its factorization.

30159156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 30159156 is about 5491.7352448930. The cubic root of 30159156 is about 311.2717647399.

The spelling of 30159156 in words is "thirty million, one hundred fifty-nine thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 12 17 19 31 34 38 51 57 62 68 76 93 102 114 124 186 204 228 251 323 372 502 527 589 646 753 969 1004 1054 1178 1292 1506 1581 1767 1938 2108 2356 3012 3162 3534 3876 4267 4769 6324 7068 7781 8534 9538 10013 12801 14307 15562 17068 19076 20026 23343 25602 28614 30039 31124 40052 46686 51204 57228 60078 81073 93372 120156 132277 147839 162146 243219 264554 295678 324292 396831 443517 486438 529108 591356 793662 887034 972876 1587324 1774068 2513263 5026526 7539789 10053052 15079578 30159156