Search a number
-
+
1481731200 = 27325251449
BaseRepresentation
bin101100001010001…
…0110110010000000
310211021010202002100
41120110112302000
511013310344300
6403010350400
751501336015
oct13024266200
93737122070
101481731200
116a0442644
1235428b400
131a7c96b31
14100b0970c
158a13b700
hex58516c80

1481731200 has 144 divisors (see below), whose sum is σ = 5287259250. Its totient is φ = 395120640.

The previous prime is 1481731159. The next prime is 1481731213. The reversal of 1481731200 is 21371841.

It can be written as a sum of positive squares in 3 ways, for example, as 962985024 + 518746176 = 31032^2 + 22776^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 3076 + ... + 54524.

Almost surely, 21481731200 is an apocalyptic number.

1481731200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1481731200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2643629625).

1481731200 is an abundant number, since it is smaller than the sum of its proper divisors (3805528050).

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

1481731200 is a wasteful number, since it uses less digits than its factorization.

1481731200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51479 (or 51459 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1481731200 is about 38493.2617479995. The cubic root of 1481731200 is about 1140.0480127516.

The spelling of 1481731200 in words is "one billion, four hundred eighty-one million, seven hundred thirty-one thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 64 72 75 80 90 96 100 120 128 144 150 160 180 192 200 225 240 288 300 320 360 384 400 450 480 576 600 640 720 800 900 960 1152 1200 1440 1600 1800 1920 2400 2880 3200 3600 4800 5760 7200 9600 14400 28800 51449 102898 154347 205796 257245 308694 411592 463041 514490 617388 771735 823184 926082 1028980 1234776 1286225 1543470 1646368 1852164 2057960 2315205 2469552 2572450 3086940 3292736 3704328 3858675 4115920 4630410 4939104 5144900 6173880 6585472 7408656 7717350 8231840 9260820 9878208 10289800 11576025 12347760 14817312 15434700 16463680 18521640 19756416 20579600 23152050 24695520 29634624 30869400 32927360 37043280 41159200 46304100 49391040 59269248 61738800 74086560 82318400 92608200 98782080 123477600 148173120 164636800 185216400 246955200 296346240 370432800 493910400 740865600 1481731200