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30195360 = 25325131613
BaseRepresentation
bin111001100101…
…1111010100000
32002211002020200
41303023322200
530212222420
62555105200
7514441056
oct163137240
962732220
1030195360
1116054248
12a142200
136342ba0
1440201d6
1529b6b90
hex1ccbea0

30195360 has 144 divisors (see below), whose sum is σ = 111036744. Its totient is φ = 7428096.

The previous prime is 30195353. The next prime is 30195371. The reversal of 30195360 is 6359103.

It can be written as a sum of positive squares in 4 ways, for example, as 20684304 + 9511056 = 4548^2 + 3084^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 17914 + ... + 19526.

Almost surely, 230195360 is an apocalyptic number.

30195360 is a gapful number since it is divisible by the number (30) 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 30195360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55518372).

30195360 is an abundant number, since it is smaller than the sum of its proper divisors (80841384).

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

30195360 is a wasteful number, since it uses less digits than its factorization.

30195360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 30195360 is about 5495.0304821721. The cubic root of 30195360 is about 311.3962684079.

The spelling of 30195360 in words is "thirty million, one hundred ninety-five thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 60 65 72 78 80 90 96 104 117 120 130 144 156 160 180 195 208 234 240 260 288 312 360 390 416 468 480 520 585 624 720 780 936 1040 1170 1248 1440 1560 1613 1872 2080 2340 3120 3226 3744 4680 4839 6240 6452 8065 9360 9678 12904 14517 16130 18720 19356 20969 24195 25808 29034 32260 38712 41938 48390 51616 58068 62907 64520 72585 77424 83876 96780 104845 116136 125814 129040 145170 154848 167752 188721 193560 209690 232272 251628 258080 290340 314535 335504 377442 387120 419380 464544 503256 580680 629070 671008 754884 774240 838760 943605 1006512 1161360 1258140 1509768 1677520 1887210 2013024 2322720 2516280 3019536 3355040 3774420 5032560 6039072 7548840 10065120 15097680 30195360