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231003342421120 = 2752912446300777
BaseRepresentation
bin110100100001100010101000…
…001010101011110010000000
31010021220201000010002211100101
4310201202220022223302000
5220234224321124433440
62135145245342532144
766441304112616043
oct6441425012536200
91107821003084311
10231003342421120
1167671a706087a5
1221aa9bb3b97054
139bb86a22ac829
14410889b2b6c5a
151ba8dd8c6169a
hexd218a82abc80

231003342421120 has 64 divisors (see below), whose sum is σ = 571285205710200. Its totient is φ = 89215083962368.

The previous prime is 231003342421099. The next prime is 231003342421129. The reversal of 231003342421120 is 21124243300132.

It can be written as a sum of positive squares in 4 ways, for example, as 187836234872896 + 43167107548224 = 13705336^2 + 6570168^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (231003342421129) 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, 6223131829 + ... + 6223168948.

Almost surely, 2231003342421120 is an apocalyptic number.

231003342421120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231003342421120 is an abundant number, since it is smaller than the sum of its proper divisors (340281863289080).

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

231003342421120 is a wasteful number, since it uses less digits than its factorization.

231003342421120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12446300825 (or 12446300813 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 231003342421120 its reverse (21124243300132), we get a palindrome (252127585721252).

The spelling of 231003342421120 in words is "two hundred thirty-one trillion, three billion, three hundred forty-two million, four hundred twenty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 58 64 80 116 128 145 160 232 290 320 464 580 640 928 1160 1856 2320 3712 4640 9280 18560 12446300777 24892601554 49785203108 62231503885 99570406216 124463007770 199140812432 248926015540 360942722533 398281624864 497852031080 721885445066 796563249728 995704062160 1443770890132 1593126499456 1804713612665 1991408124320 2887541780264 3609427225330 3982816248640 5775083560528 7218854450660 7965632497280 11550167121056 14437708901320 23100334242112 28875417802640 46200668484224 57750835605280 115501671210560 231003342421120