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122868000 = 2532533413
BaseRepresentation
bin1110101001011…
…01000100100000
322120012100012200
413110231010200
5222423234000
620105253200
73021234513
oct724550440
9276170180
10122868000
11633a0602
1235194200
131c5bc478
1412464d7a
15abc0500
hex752d120

122868000 has 144 divisors (see below), whose sum is σ = 436186296. Its totient is φ = 32755200.

The previous prime is 122867999. The next prime is 122868007. The reversal of 122868000 is 868221.

It can be written as a sum of positive squares in 4 ways, for example, as 68757264 + 54110736 = 8292^2 + 7356^2 .

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

It is not an unprimeable number, because it can be changed into a prime (122868007) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 34294 + ... + 37706.

Almost surely, 2122868000 is an apocalyptic number.

122868000 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 122868000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218093148).

122868000 is an abundant number, since it is smaller than the sum of its proper divisors (313318296).

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

122868000 is a wasteful number, since it uses less digits than its factorization.

122868000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444 (or 3423 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 122868000 is about 11084.5838893483. The cubic root of 122868000 is about 497.1410169231.

The spelling of 122868000 in words is "one hundred twenty-two million, eight hundred sixty-eight thousand".

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 72 75 80 90 96 100 120 125 144 150 160 180 200 225 240 250 288 300 360 375 400 450 480 500 600 720 750 800 900 1000 1125 1200 1440 1500 1800 2000 2250 2400 3000 3413 3600 4000 4500 6000 6826 7200 9000 10239 12000 13652 17065 18000 20478 27304 30717 34130 36000 40956 51195 54608 61434 68260 81912 85325 102390 109216 122868 136520 153585 163824 170650 204780 245736 255975 273040 307170 327648 341300 409560 426625 491472 511950 546080 614340 682600 767925 819120 853250 982944 1023900 1228680 1279875 1365200 1535850 1638240 1706500 2047800 2457360 2559750 2730400 3071700 3413000 3839625 4095600 4914720 5119500 6143400 6826000 7679250 8191200 10239000 12286800 13652000 15358500 20478000 24573600 30717000 40956000 61434000 122868000