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131020443023100 = 223521062774109401
BaseRepresentation
bin11101110010100110010010…
…111101101111011011111100
3122011220102122221120212221120
4131302212102331233123330
5114133114331403214400
61142353543253230540
736411625501245111
oct3562462275573374
9564812587525846
10131020443023100
1138824504432a34
1212840781332450
135815236c517a7
14244d5cd690908
1510232208dbca0
hex772992f6f6fc

131020443023100 has 72 divisors (see below), whose sum is σ = 379089474356208. Its totient is φ = 34938447552000.

The previous prime is 131020443022969. The next prime is 131020443023111. The reversal of 131020443023100 is 1320344020131.

It is a happy number.

It is a super-3 number, since 3×1310204430231003 (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29828400 + ... + 33937800.

Almost surely, 2131020443023100 is an apocalyptic number.

131020443023100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131020443023100 is an abundant number, since it is smaller than the sum of its proper divisors (248069031333108).

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

131020443023100 is a wasteful number, since it uses less digits than its factorization.

131020443023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215695 (or 4215688 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 131020443023100 its reverse (1320344020131), we get a palindrome (132340787043231).

The spelling of 131020443023100 in words is "one hundred thirty-one trillion, twenty billion, four hundred forty-three million, twenty-three thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 106277 212554 318831 425108 531385 637662 1062770 1275324 1594155 2125540 2656925 3188310 4109401 5313850 6376620 7970775 8218802 10627700 12328203 15941550 16437604 20547005 24656406 31883100 41094010 49312812 61641015 82188020 102735025 123282030 205470050 246564060 308205075 410940100 616410150 1232820300 436734810077 873469620154 1310204430231 1746939240308 2183674050385 2620408860462 4367348100770 5240817720924 6551022151155 8734696201540 10918370251925 13102044302310 21836740503850 26204088604620 32755110755775 43673481007700 65510221511550 131020443023100