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12396128 = 251722787
BaseRepresentation
bin101111010010…
…011001100000
3212022210021212
4233102121200
511133134003
61121405252
7210236213
oct57223140
925283255
1012396128
116aa7438
124199828
1327503b4
14190977a
15114cdd8
hexbd2660

12396128 has 24 divisors (see below), whose sum is σ = 25841592. Its totient is φ = 5833216.

The previous prime is 12396119. The next prime is 12396143. The reversal of 12396128 is 82169321.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 12396094 and 12396103.

It is a congruent number.

It is an unprimeable number.

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, 10850 + ... + 11937.

It is an arithmetic number, because the mean of its divisors is an integer number (1076733).

Almost surely, 212396128 is an apocalyptic number.

It is an amenable number.

12396128 is an abundant number, since it is smaller than the sum of its proper divisors (13445464).

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

12396128 is a wasteful number, since it uses less digits than its factorization.

12396128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22814 (or 22806 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 12396128 is about 3520.8135423507. The cubic root of 12396128 is about 231.4348113079.

The spelling of 12396128 in words is "twelve million, three hundred ninety-six thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 22787 45574 91148 182296 364592 387379 729184 774758 1549516 3099032 6198064 12396128