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20640301301400 = 23352113127318379
BaseRepresentation
bin1001011000101101100011…
…10100111011111010011000
32201002012020002022210110120
410230112301310323322120
510201132314113121100
6111522005025113240
74230132623210304
oct454266164737230
981065202283416
1020640301301400
116638558aa18a0
12239428b188820
13b694ab558a41
14514dd2b00d04
1525bd7cda50a0
hex12c5b1d3be98

20640301301400 has 96 divisors (see below), whose sum is σ = 69801746241600. Its totient is φ = 5003709404800.

The previous prime is 20640301301293. The next prime is 20640301301429. The reversal of 20640301301400 is 410310304602.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 1563652590 + ... + 1563665789.

It is an arithmetic number, because the mean of its divisors is an integer number (727101523350).

Almost surely, 220640301301400 is an apocalyptic number.

20640301301400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20640301301400 is an abundant number, since it is smaller than the sum of its proper divisors (49161444940200).

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

20640301301400 is a wasteful number, since it uses less digits than its factorization.

20640301301400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127318409 (or 3127318400 counting only the distinct ones).

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

The spelling of 20640301301400 in words is "twenty trillion, six hundred forty billion, three hundred one million, three hundred one thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 25 30 33 40 44 50 55 60 66 75 88 100 110 120 132 150 165 200 220 264 275 300 330 440 550 600 660 825 1100 1320 1650 2200 3300 6600 3127318379 6254636758 9381955137 12509273516 15636591895 18763910274 25018547032 31273183790 34400502169 37527820548 46909775685 62546367580 68801004338 75055641096 78182959475 93819551370 103201506507 125092735160 137602008676 156365918950 172002510845 187639102740 206403013014 234548878425 275204017352 312731837900 344005021690 375278205480 412806026028 469097756850 516007532535 625463675800 688010043380 825612052056 860012554225 938195513700 1032015065070 1376020086760 1720025108450 1876391027400 2064030130140 2580037662675 3440050216900 4128060260280 5160075325350 6880100433800 10320150650700 20640301301400