Search a number
-
+
308416320 = 26325107089
BaseRepresentation
bin10010011000100…
…000111101000000
3210111100011122200
4102120200331000
51112423310240
650334233200
710433331642
oct2230407500
9714304580
10308416320
11149102823
1287355800
134bb86884
142cd64892
151c122930
hex12620f40

308416320 has 84 divisors (see below), whose sum is σ = 1060833540. Its totient is φ = 82243584.

The previous prime is 308416319. The next prime is 308416331. The reversal of 308416320 is 23614803.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 65804544 + 242611776 = 8112^2 + 15576^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50665 + ... + 56424.

Almost surely, 2308416320 is an apocalyptic number.

308416320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

308416320 is an abundant number, since it is smaller than the sum of its proper divisors (752417220).

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

308416320 is a wasteful number, since it uses less digits than its factorization.

308416320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107112 (or 107099 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 308416320 is about 17561.7857861893. The cubic root of 308416320 is about 675.6354838357.

The spelling of 308416320 in words is "three hundred eight million, four hundred sixteen thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 320 360 480 576 720 960 1440 2880 107089 214178 321267 428356 535445 642534 856712 963801 1070890 1285068 1606335 1713424 1927602 2141780 2570136 3212670 3426848 3855204 4283560 4819005 5140272 6425340 6853696 7710408 8567120 9638010 10280544 12850680 15420816 17134240 19276020 20561088 25701360 30841632 34268480 38552040 51402720 61683264 77104080 102805440 154208160 308416320