Search a number
-
+
80122000 = 245375997
BaseRepresentation
bin1001100011010…
…01000010010000
312120202121201111
410301221002100
5131002401000
611541143104
71662011560
oct461510220
9176677644
1080122000
1141254932
12229baa94
13137a3a8a
14a8d8da0
157079cba
hex4c69090

80122000 has 160 divisors (see below), whose sum is σ = 227485440. Its totient is φ = 26726400.

The previous prime is 80121991. The next prime is 80122001. The reversal of 80122000 is 22108.

80122000 = T105 + T106 + ... + T783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80122001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 825952 + ... + 826048.

It is an arithmetic number, because the mean of its divisors is an integer number (1421784).

Almost surely, 280122000 is an apocalyptic number.

80122000 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 80122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113742720).

80122000 is an abundant number, since it is smaller than the sum of its proper divisors (147363440).

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

80122000 is a wasteful number, since it uses less digits than its factorization.

80122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 80122000 is about 8951.0893191834. The cubic root of 80122000 is about 431.1058609517.

Adding to 80122000 its reverse (22108), we get a palindrome (80144108).

It can be divided in two parts, 801 and 22000, that added together give a square (22801 = 1512).

The spelling of 80122000 in words is "eighty million, one hundred twenty-two thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 35 40 50 56 59 70 80 97 100 112 118 125 140 175 194 200 236 250 280 295 350 388 400 413 472 485 500 560 590 679 700 776 826 875 944 970 1000 1180 1358 1400 1475 1552 1652 1750 1940 2000 2065 2360 2425 2716 2800 2950 3304 3395 3500 3880 4130 4720 4850 5432 5723 5900 6608 6790 7000 7375 7760 8260 9700 10325 10864 11446 11800 12125 13580 14000 14750 16520 16975 19400 20650 22892 23600 24250 27160 28615 29500 33040 33950 38800 40061 41300 45784 48500 51625 54320 57230 59000 67900 80122 82600 84875 91568 97000 103250 114460 118000 135800 143075 160244 165200 169750 194000 200305 206500 228920 271600 286150 320488 339500 400610 413000 457840 572300 640976 679000 715375 801220 826000 1001525 1144600 1358000 1430750 1602440 2003050 2289200 2861500 3204880 4006100 5007625 5723000 8012200 10015250 11446000 16024400 20030500 40061000 80122000