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126948907008 = 21132711233889
BaseRepresentation
bin111011000111010111…
…1101001100000000000
3110010200021202122212200
41312032233221200000
54034442410011013
6134153003353200
712112624622340
oct1661657514000
9403607678780
10126948907008
1149925391880
122072ab22800
13bc81a41571
1462041a2d20
15348007ae73
hex1d8ebe9800

126948907008 has 576 divisors, whose sum is σ = 477121881600. Its totient is φ = 31531991040.

The previous prime is 126948906991. The next prime is 126948907021. The reversal of 126948907008 is 800709849621.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×1269489070082 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 32641128 + ... + 32645016.

It is an arithmetic number, because the mean of its divisors is an integer number (828336600).

Almost surely, 2126948907008 is an apocalyptic number.

126948907008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126948907008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238560940800).

126948907008 is an abundant number, since it is smaller than the sum of its proper divisors (350172974592).

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

126948907008 is a wasteful number, since it uses less digits than its factorization.

126948907008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958 (or 3935 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 126948907008 in words is "one hundred twenty-six billion, nine hundred forty-eight million, nine hundred seven thousand, eight".