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126828012 = 22332512
BaseRepresentation
bin1111000111100…
…11110111101100
322211122112022210
413203303313230
5224431444022
620330210420
73100006653
oct743636754
9284575283
10126828012
1165655843
1236583a10
1320377a7c
1412bb619a
15b203a0c
hex78f3dec

126828012 has 18 divisors (see below), whose sum is σ = 296023084. Its totient is φ = 42263000.

The previous prime is 126828001. The next prime is 126828019. The reversal of 126828012 is 210828621.

It is not an unprimeable number, because it can be changed into a prime (126828019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37387 + ... + 40637.

Almost surely, 2126828012 is an apocalyptic number.

126828012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126828012 is an abundant number, since it is smaller than the sum of its proper divisors (169195072).

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

126828012 is an frugal number, since it uses more digits than its factorization.

126828012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6509 (or 3256 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 126828012 is about 11261.7943508128. The cubic root of 126828012 is about 502.4255635886.

Multiplying 126828012 by its product of nonzero digits (3072), we get a square (389615652864 = 6241922).

The spelling of 126828012 in words is "one hundred twenty-six million, eight hundred twenty-eight thousand, twelve".

Divisors: 1 2 3 4 6 12 3251 6502 9753 13004 19506 39012 10569001 21138002 31707003 42276004 63414006 126828012