Search a number
-
+
313618816 = 2772311613
BaseRepresentation
bin10010101100010…
…111000110000000
3210212010111010201
4102230113012000
51120241300231
651041534544
710525500400
oct2254270600
9725114121
10313618816
11151036505
1289044454
134cc88884
142d91a800
151c7ee161
hex12b17180

313618816 has 96 divisors (see below), whose sum is σ = 750703680. Its totient is φ = 129991680.

The previous prime is 313618813. The next prime is 313618817. The reversal of 313618816 is 618816313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313618813) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 193626 + ... + 195238.

It is an arithmetic number, because the mean of its divisors is an integer number (7819830).

Almost surely, 2313618816 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 313618816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375351840).

313618816 is an abundant number, since it is smaller than the sum of its proper divisors (437084864).

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

313618816 is a wasteful number, since it uses less digits than its factorization.

313618816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672 (or 1653 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 313618816 is about 17709.2861516211. The cubic root of 313618816 is about 679.4132886190.

It can be divided in two parts, 3136 and 18816, that added together give a cube (21952 = 283).

The spelling of 313618816 in words is "three hundred thirteen million, six hundred eighteen thousand, eight hundred sixteen".

Divisors: 1 2 4 7 8 14 16 28 31 32 49 56 62 64 98 112 124 128 196 217 224 248 392 434 448 496 784 868 896 992 1519 1568 1613 1736 1984 3038 3136 3226 3472 3968 6076 6272 6452 6944 11291 12152 12904 13888 22582 24304 25808 27776 45164 48608 50003 51616 79037 90328 97216 100006 103232 158074 180656 194432 200012 206464 316148 350021 361312 400024 632296 700042 722624 800048 1264592 1400084 1445248 1600096 2450147 2529184 2800168 3200192 4900294 5058368 5600336 6400384 9800588 10116736 11200672 19601176 22401344 39202352 44802688 78404704 156809408 313618816