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12245000 = 23543179
BaseRepresentation
bin101110101101…
…100000001000
3212001002222112
4232231200020
511113320000
61114241452
7206036465
oct56554010
925032875
1012245000
116a03939
124126288
1326c9681
1418aa66c
15111d235
hexbad808

12245000 has 80 divisors (see below), whose sum is σ = 29990400. Its totient is φ = 4680000.

The previous prime is 12244997. The next prime is 12245021. The reversal of 12245000 is 54221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 154961 + ... + 155039.

It is an arithmetic number, because the mean of its divisors is an integer number (374880).

Almost surely, 212245000 is an apocalyptic number.

12245000 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 12245000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14995200).

12245000 is an abundant number, since it is smaller than the sum of its proper divisors (17745400).

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

12245000 is an equidigital number, since it uses as much as digits as its factorization.

12245000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 12245000 is about 3499.2856413845. The cubic root of 12245000 is about 230.4904468226.

Adding to 12245000 its reverse (54221), we get a palindrome (12299221).

The spelling of 12245000 in words is "twelve million, two hundred forty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 31 40 50 62 79 100 124 125 155 158 200 248 250 310 316 395 500 620 625 632 775 790 1000 1240 1250 1550 1580 1975 2449 2500 3100 3160 3875 3950 4898 5000 6200 7750 7900 9796 9875 12245 15500 15800 19375 19592 19750 24490 31000 38750 39500 48980 49375 61225 77500 79000 97960 98750 122450 155000 197500 244900 306125 395000 489800 612250 1224500 1530625 2449000 3061250 6122500 12245000