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12383970 = 235509811
BaseRepresentation
bin101111001111…
…011011100010
3212022011121120
4233033123202
511132241340
61121233110
7210155604
oct57173342
925264546
1012383970
116a99295
124192796
1327479c1
141905174
1511494d0
hexbcf6e2

12383970 has 32 divisors (see below), whose sum is σ = 29816640. Its totient is φ = 3291840.

The previous prime is 12383947. The next prime is 12383977. The reversal of 12383970 is 7938321.

It is not an unprimeable number, because it can be changed into a prime (12383977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14865 + ... + 15675.

It is an arithmetic number, because the mean of its divisors is an integer number (931770).

Almost surely, 212383970 is an apocalyptic number.

12383970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12383970 is an abundant number, since it is smaller than the sum of its proper divisors (17432670).

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

12383970 is a wasteful number, since it uses less digits than its factorization.

12383970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 12383970 is about 3519.0865292004. The cubic root of 12383970 is about 231.3591235650.

The spelling of 12383970 in words is "twelve million, three hundred eighty-three thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 509 811 1018 1527 1622 2433 2545 3054 4055 4866 5090 7635 8110 12165 15270 24330 412799 825598 1238397 2063995 2476794 4127990 6191985 12383970