Search a number
-
+
380108800 = 2195229
BaseRepresentation
bin10110101010000…
…000000000000000
3222111020112020201
4112222000000000
51234301440200
6101415014544
712263604631
oct2652000000
9874215221
10380108800
1118561a405
12a736a454
1360998866
14386a7888
1523584c6a
hex16a80000

380108800 has 120 divisors (see below), whose sum is σ = 975174750. Its totient is φ = 146800640.

The previous prime is 380108789. The next prime is 380108821. The reversal of 380108800 is 8801083.

It can be written as a sum of positive squares in 3 ways, for example, as 285474816 + 94633984 = 16896^2 + 9728^2 .

It is a zygodrome in base 4.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13107186 + ... + 13107214.

Almost surely, 2380108800 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 380108800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487587375).

380108800 is an abundant number, since it is smaller than the sum of its proper divisors (595065950).

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

380108800 is an frugal number, since it uses more digits than its factorization.

380108800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 380108800 is about 19496.3791510116. The cubic root of 380108800 is about 724.3847654163.

Adding to 380108800 its reverse (8801083), we get a palindrome (388909883).

The spelling of 380108800 in words is "three hundred eighty million, one hundred eight thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 29 32 40 50 58 64 80 100 116 128 145 160 200 232 256 290 320 400 464 512 580 640 725 800 928 1024 1160 1280 1450 1600 1856 2048 2320 2560 2900 3200 3712 4096 4640 5120 5800 6400 7424 8192 9280 10240 11600 12800 14848 16384 18560 20480 23200 25600 29696 32768 37120 40960 46400 51200 59392 65536 74240 81920 92800 102400 118784 131072 148480 163840 185600 204800 237568 262144 296960 327680 371200 409600 475136 524288 593920 655360 742400 819200 950272 1187840 1310720 1484800 1638400 1900544 2375680 2621440 2969600 3276800 3801088 4751360 5939200 6553600 7602176 9502720 11878400 13107200 15204352 19005440 23756800 38010880 47513600 76021760 95027200 190054400 380108800