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126730855 = 5192611151
BaseRepresentation
bin1111000110111…
…00001001100111
322211110121001101
413203130021213
5224420341410
620324140531
73066123466
oct743341147
9284417041
10126730855
1165599849
1236537747
1320342794
1412b8c9dd
15b1d4d3a
hex78dc267

126730855 has 24 divisors (see below), whose sum is σ = 163275264. Its totient is φ = 94392000.

The previous prime is 126730831. The next prime is 126730859. The reversal of 126730855 is 558037621.

It is not a de Polignac number, because 126730855 - 25 = 126730823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126730859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109530 + ... + 110680.

It is an arithmetic number, because the mean of its divisors is an integer number (6803136).

Almost surely, 2126730855 is an apocalyptic number.

126730855 is a deficient number, since it is larger than the sum of its proper divisors (36544409).

126730855 is a wasteful number, since it uses less digits than its factorization.

126730855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255 (or 1236 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 126730855 is about 11257.4799577881. The cubic root of 126730855 is about 502.2972359167.

The spelling of 126730855 in words is "one hundred twenty-six million, seven hundred thirty thousand, eight hundred fifty-five".

Divisors: 1 5 19 61 95 305 361 1151 1159 1805 5755 5795 21869 22021 70211 109345 110105 351055 415511 1334009 2077555 6670045 25346171 126730855