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83200000 = 2115513
BaseRepresentation
bin1001111010110…
…00100000000000
312210112222221111
410331120200000
5132244400000
612131133104
72030121412
oct475304000
9183488844
1083200000
1142a67434
1223a44194
1314310a90
14b09a9b2
157486cba
hex4f58800

83200000 has 144 divisors (see below), whose sum is σ = 223930980. Its totient is φ = 30720000.

The previous prime is 83199973. The next prime is 83200009. The reversal of 83200000 is 238.

It can be written as a sum of positive squares in 6 ways, for example, as 22733824 + 60466176 = 4768^2 + 7776^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (83200009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6399994 + ... + 6400006.

Almost surely, 283200000 is an apocalyptic number.

83200000 is a gapful number since it is divisible by the number (80) 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 83200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111965490).

83200000 is an abundant number, since it is smaller than the sum of its proper divisors (140730980).

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

83200000 is an frugal number, since it uses more digits than its factorization.

83200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 83200000 is about 9121.4034007931. The cubic root of 83200000 is about 436.5571532244.

Adding to 83200000 its reverse (238), we get a palindrome (83200238).

The spelling of 83200000 in words is "eighty-three million, two hundred thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 125 128 130 160 200 208 250 256 260 320 325 400 416 500 512 520 625 640 650 800 832 1000 1024 1040 1250 1280 1300 1600 1625 1664 2000 2048 2080 2500 2560 2600 3125 3200 3250 3328 4000 4160 5000 5120 5200 6250 6400 6500 6656 8000 8125 8320 10000 10240 10400 12500 12800 13000 13312 16000 16250 16640 20000 20800 25000 25600 26000 26624 32000 32500 33280 40000 40625 41600 50000 51200 52000 64000 65000 66560 80000 81250 83200 100000 104000 128000 130000 133120 160000 162500 166400 200000 208000 256000 260000 320000 325000 332800 400000 416000 520000 640000 650000 665600 800000 832000 1040000 1280000 1300000 1600000 1664000 2080000 2600000 3200000 3328000 4160000 5200000 6400000 8320000 10400000 16640000 20800000 41600000 83200000