Search a number
-
+
8214320800 = 255272209549
BaseRepresentation
bin1111010011001110…
…01001011010100000
3210012110200201202201
413221213021122200
5113310331231200
63435033222544
7410362401100
oct75147113240
923173621681
108214320800
113535851884
121712b61a54
13a0ba7286a
1457cd37200
15331232c6a
hex1e99c96a0

8214320800 has 108 divisors (see below), whose sum is σ = 23327315550. Its totient is φ = 2816325120.

The previous prime is 8214320713. The next prime is 8214320833. The reversal of 8214320800 is 80234128.

It can be written as a sum of positive squares in 3 ways, for example, as 6381453456 + 1832867344 = 79884^2 + 42812^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 65575 + ... + 143974.

Almost surely, 28214320800 is an apocalyptic number.

8214320800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8214320800 is an abundant number, since it is smaller than the sum of its proper divisors (15112994750).

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

8214320800 is a wasteful number, since it uses less digits than its factorization.

8214320800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209583 (or 209563 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 8214320800 is about 90632.8902772057. The cubic root of 8214320800 is about 2017.7029078627.

Adding to 8214320800 its reverse (80234128), we get a palindrome (8294554928).

The spelling of 8214320800 in words is "eight billion, two hundred fourteen million, three hundred twenty thousand, eight hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 49 50 56 70 80 98 100 112 140 160 175 196 200 224 245 280 350 392 400 490 560 700 784 800 980 1120 1225 1400 1568 1960 2450 2800 3920 4900 5600 7840 9800 19600 39200 209549 419098 838196 1047745 1466843 1676392 2095490 2933686 3352784 4190980 5238725 5867372 6705568 7334215 8381960 10267901 10477450 11734744 14668430 16763920 20535802 20954900 23469488 29336860 33527840 36671075 41071604 41909800 46938976 51339505 58673720 73342150 82143208 83819600 102679010 117347440 146684300 164286416 167639200 205358020 234694880 256697525 293368600 328572832 410716040 513395050 586737200 821432080 1026790100 1173474400 1642864160 2053580200 4107160400 8214320800