Search a number
-
+
315609060 = 2235132391693
BaseRepresentation
bin10010110011111…
…100111111100100
3210222212121020110
4102303330333210
51121243442220
651152333020
710551430014
oct2263747744
9728777213
10315609060
11152175838
1289844170
1350504730
142dcb7c44
151ca93be0
hex12cfcfe4

315609060 has 96 divisors (see below), whose sum is σ = 956229120. Its totient is φ = 77317632.

The previous prime is 315609037. The next prime is 315609067. The reversal of 315609060 is 60906513.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (315609067) 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, 185574 + ... + 187266.

It is an arithmetic number, because the mean of its divisors is an integer number (9960720).

Almost surely, 2315609060 is an apocalyptic number.

315609060 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 315609060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478114560).

315609060 is an abundant number, since it is smaller than the sum of its proper divisors (640620060).

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

315609060 is a wasteful number, since it uses less digits than its factorization.

315609060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957 (or 1955 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 315609060 is about 17765.3893849811. The cubic root of 315609060 is about 680.8474584000.

The spelling of 315609060 in words is "three hundred fifteen million, six hundred nine thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 239 260 390 478 717 780 956 1195 1434 1693 2390 2868 3107 3386 3585 4780 5079 6214 6772 7170 8465 9321 10158 12428 14340 15535 16930 18642 20316 22009 25395 31070 33860 37284 44018 46605 50790 62140 66027 88036 93210 101580 110045 132054 186420 220090 264108 330135 404627 440180 660270 809254 1213881 1320540 1618508 2023135 2427762 4046270 4855524 5260151 6069405 8092540 10520302 12138810 15780453 21040604 24277620 26300755 31560906 52601510 63121812 78902265 105203020 157804530 315609060