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126526940 = 22519332779
BaseRepresentation
bin1111000101010…
…10010111011100
322211002020022222
413202222113130
5224342330230
620315524512
73064314131
oct742522734
9284066288
10126526940
116546a621
1236459738
13202a0a17
1412b38588
15b1946e5
hex78aa5dc

126526940 has 24 divisors (see below), whose sum is σ = 267091440. Its totient is φ = 50347008.

The previous prime is 126526921. The next prime is 126526949. The reversal of 126526940 is 49625621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 126526940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126526949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12530 + ... + 20249.

It is an arithmetic number, because the mean of its divisors is an integer number (11128810).

Almost surely, 2126526940 is an apocalyptic number.

126526940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126526940 is an abundant number, since it is smaller than the sum of its proper divisors (140564500).

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

126526940 is a wasteful number, since it uses less digits than its factorization.

126526940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32981 (or 32979 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 126526940 is about 11248.4194445264. The cubic root of 126526940 is about 502.0276858643.

The spelling of 126526940 in words is "one hundred twenty-six million, five hundred twenty-six thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 193 386 772 965 1930 3860 32779 65558 131116 163895 327790 655580 6326347 12652694 25305388 31631735 63263470 126526940