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12198070 = 251219807
BaseRepresentation
bin101110100010…
…000010110110
3211221201121101
4232202002312
511110314240
61113240314
7205452613
oct56420266
924851541
1012198070
116981655
12410309a
1326b11c1
14189750a
15110e39a
hexba20b6

12198070 has 8 divisors (see below), whose sum is σ = 21956544. Its totient is φ = 4879224.

The previous prime is 12198059. The next prime is 12198071. The reversal of 12198070 is 7089121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12198071) 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 3 ways as a sum of consecutive naturals, for example, 609894 + ... + 609913.

It is an arithmetic number, because the mean of its divisors is an integer number (2744568).

Almost surely, 212198070 is an apocalyptic number.

12198070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12198070 is a deficient number, since it is larger than the sum of its proper divisors (9758474).

12198070 is a wasteful number, since it uses less digits than its factorization.

12198070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219814.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 12198070 is about 3492.5735496908. The cubic root of 12198070 is about 230.1956117856.

The spelling of 12198070 in words is "twelve million, one hundred ninety-eight thousand, seventy".

Divisors: 1 2 5 10 1219807 2439614 6099035 12198070