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12019124 = 22131811277
BaseRepresentation
bin101101110110…
…010110110100
3211121122010202
4231312112310
511034102444
61105340032
7204106115
oct55662664
924548122
1012019124
11686a167
124037618
13264a910
14184c20c
1510c634e
hexb765b4

12019124 has 24 divisors (see below), whose sum is σ = 22794408. Its totient is φ = 5512320.

The previous prime is 12019099. The next prime is 12019151. The reversal of 12019124 is 42191021.

It can be written as a sum of positive squares in 4 ways, for example, as 47524 + 11971600 = 218^2 + 3460^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12019096 and 12019105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8774 + ... + 10050.

It is an arithmetic number, because the mean of its divisors is an integer number (949767).

Almost surely, 212019124 is an apocalyptic number.

It is an amenable number.

12019124 is a deficient number, since it is larger than the sum of its proper divisors (10775284).

12019124 is a wasteful number, since it uses less digits than its factorization.

12019124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 1473 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 12019124 is about 3466.8608278960. The cubic root of 12019124 is about 229.0644034896.

The spelling of 12019124 in words is "twelve million, nineteen thousand, one hundred twenty-four".

Divisors: 1 2 4 13 26 52 181 362 724 1277 2353 2554 4706 5108 9412 16601 33202 66404 231137 462274 924548 3004781 6009562 12019124