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126741420 = 223251354163
BaseRepresentation
bin1111000110111…
…10101110101100
322211111010112200
413203132232230
5224421211140
620324301500
73066166341
oct743365654
9284433480
10126741420
11655a6783
1236541890
1320347530
1412b927c8
15b1d8030
hex78debac

126741420 has 72 divisors (see below), whose sum is σ = 414029616. Its totient is φ = 31197312.

The previous prime is 126741401. The next prime is 126741427. The reversal of 126741420 is 24147621.

It is not an unprimeable number, because it can be changed into a prime (126741427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24742 + ... + 29421.

Almost surely, 2126741420 is an apocalyptic number.

126741420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126741420 is an abundant number, since it is smaller than the sum of its proper divisors (287288196).

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

126741420 is a wasteful number, since it uses less digits than its factorization.

126741420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54191 (or 54186 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 126741420 is about 11257.9491915713. The cubic root of 126741420 is about 502.3111936406.

The spelling of 126741420 in words is "one hundred twenty-six million, seven hundred forty-one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 54163 108326 162489 216652 270815 324978 487467 541630 649956 704119 812445 974934 1083260 1408238 1624890 1949868 2112357 2437335 2816476 3249780 3520595 4224714 4874670 6337071 7041190 8449428 9749340 10561785 12674142 14082380 21123570 25348284 31685355 42247140 63370710 126741420