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20010231333100 = 2252800712499061
BaseRepresentation
bin1001000110010111111101…
…01110110000000011101100
32121211221220102112002010201
410203023332232300003230
510110321423210124400
6110320323503043244
74133456120641231
oct443137656600354
977757812462121
1020010231333100
116415322a16028
1222b2149ba0524
13b21c58ba91a8
144d2700ddb788
1524a7a31dc06a
hex1232febb00ec

20010231333100 has 36 divisors (see below), whose sum is σ = 43422761664688. Its totient is φ = 8003989368000.

The previous prime is 20010231333089. The next prime is 20010231333133. The reversal of 20010231333100 is 133313201002.

It is a super-2 number, since 2×200102313331002 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6757570 + ... + 9256630.

Almost surely, 220010231333100 is an apocalyptic number.

20010231333100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010231333100 is an abundant number, since it is smaller than the sum of its proper divisors (23412530331588).

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

20010231333100 is a wasteful number, since it uses less digits than its factorization.

20010231333100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579146 (or 2579139 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20010231333100 its reverse (133313201002), we get a palindrome (20143544534102).

The spelling of 20010231333100 in words is "twenty trillion, ten billion, two hundred thirty-one million, three hundred thirty-three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 80071 160142 320284 400355 800710 1601420 2001775 2499061 4003550 4998122 8007100 9996244 12495305 24990610 49981220 62476525 124953050 249906100 200102313331 400204626662 800409253324 1000511566655 2001023133310 4002046266620 5002557833275 10005115666550 20010231333100