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313103660 = 22519472373
BaseRepresentation
bin10010101010011…
…001010100101100
3210211011022110212
4102222121110230
51120123304120
651022521552
710521223442
oct2252312454
9724138425
10313103660
11150814461
1288a362b8
134cb3824c
142d824b92
151c74b6c5
hex12a9952c

313103660 has 72 divisors (see below), whose sum is σ = 709059120. Its totient is φ = 115814016.

The previous prime is 313103653. The next prime is 313103711. The reversal of 313103660 is 66301313.

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, 839234 + ... + 839606.

Almost surely, 2313103660 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 313103660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354529560).

313103660 is an abundant number, since it is smaller than the sum of its proper divisors (395955460).

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

313103660 is a wasteful number, since it uses less digits than its factorization.

313103660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 313103660 is about 17694.7353752465. The cubic root of 313103660 is about 679.0410791828.

Adding to 313103660 its reverse (66301313), we get a palindrome (379404973).

The spelling of 313103660 in words is "three hundred thirteen million, one hundred three thousand, six hundred sixty".

Divisors: 1 2 4 5 10 19 20 38 47 76 94 95 188 190 235 373 380 470 746 893 940 1492 1786 1865 2209 3572 3730 4418 4465 7087 7460 8836 8930 11045 14174 17531 17860 22090 28348 35062 35435 41971 44180 70124 70870 83942 87655 141740 167884 175310 209855 333089 350620 419710 666178 823957 839420 1332356 1647914 1665445 3295828 3330890 4119785 6661780 8239570 15655183 16479140 31310366 62620732 78275915 156551830 313103660