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134344430020 = 22518137111721
BaseRepresentation
bin111110100011110001…
…1010101000111000100
3110211202200202011020101
41331013203111013010
54200114133230040
6141414511213444
712464115546043
oct1750743250704
9424680664211
10134344430020
1151a7aa23769
1222053817284
13c88cc7c098
14670647a55a
15376447209a
hex1f478d51c4

134344430020 has 24 divisors (see below), whose sum is σ = 283682002968. Its totient is φ = 53440876800.

The previous prime is 134344429957. The next prime is 134344430029. The reversal of 134344430020 is 20034443431.

It can be written as a sum of positive squares in 4 ways, for example, as 3660734016 + 130683696004 = 60504^2 + 361502^2 .

It is not an unprimeable number, because it can be changed into a prime (134344430029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18552241 + ... + 18559480.

It is an arithmetic number, because the mean of its divisors is an integer number (11820083457).

Almost surely, 2134344430020 is an apocalyptic number.

134344430020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134344430020 is an abundant number, since it is smaller than the sum of its proper divisors (149337572948).

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

134344430020 is a wasteful number, since it uses less digits than its factorization.

134344430020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37111911 (or 37111909 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 134344430020 its reverse (20034443431), we get a palindrome (154378873451).

The spelling of 134344430020 in words is "one hundred thirty-four billion, three hundred forty-four million, four hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 181 362 724 905 1810 3620 37111721 74223442 148446884 185558605 371117210 742234420 6717221501 13434443002 26868886004 33586107505 67172215010 134344430020