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12388026 = 237294953
BaseRepresentation
bin101111010000…
…011010111010
3212022101011210
4233100122322
511132404101
61121303550
7210203460
oct57203272
925271153
1012388026
116aa1342
124194bb6
1327497c1
141906830
15114a7d6
hexbd06ba

12388026 has 16 divisors (see below), whose sum is σ = 28315584. Its totient is φ = 3539424.

The previous prime is 12387979. The next prime is 12388031. The reversal of 12388026 is 62088321.

It is a junction number, because it is equal to n+sod(n) for n = 12387984 and 12388002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147435 + ... + 147518.

It is an arithmetic number, because the mean of its divisors is an integer number (1769724).

Almost surely, 212388026 is an apocalyptic number.

12388026 is an abundant number, since it is smaller than the sum of its proper divisors (15927558).

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

12388026 is a wasteful number, since it uses less digits than its factorization.

12388026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294965.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 12388026 is about 3519.6627679367. The cubic root of 12388026 is about 231.3843790681.

The spelling of 12388026 in words is "twelve million, three hundred eighty-eight thousand, twenty-six".

Divisors: 1 2 3 6 7 14 21 42 294953 589906 884859 1769718 2064671 4129342 6194013 12388026