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3120040303020 = 223357181378203
BaseRepresentation
bin101101011001110000111…
…001001101100110101100
3102001021100222021111022000
4231121300321031212230
5402104320304144040
610345154323452300
7441262335666024
oct55316071154654
912037328244260
103120040303020
11aa3224459083
12424827227090
131982ac1889c4
14ab021730a84
155625d00b130
hex2d670e4d9ac

3120040303020 has 96 divisors (see below), whose sum is σ = 9843507555840. Its totient is φ = 820292276160.

The previous prime is 3120040303001. The next prime is 3120040303031. The reversal of 3120040303020 is 203030400213.

3120040303020 is a `hidden beast` number, since 31 + 200 + 403 + 0 + 30 + 2 + 0 = 666.

It is a super-2 number, since 2×31200403030202 (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3120040302984 and 3120040303002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40650762 + ... + 40727441.

It is an arithmetic number, because the mean of its divisors is an integer number (102536537040).

Almost surely, 23120040303020 is an apocalyptic number.

3120040303020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3120040303020 is an abundant number, since it is smaller than the sum of its proper divisors (6723467252820).

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

3120040303020 is a wasteful number, since it uses less digits than its factorization.

3120040303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81378292 (or 81378284 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 3120040303020 its reverse (203030400213), we get a palindrome (3323070703233).

The spelling of 3120040303020 in words is "three trillion, one hundred twenty billion, forty million, three hundred three thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 71 90 108 135 142 180 213 270 284 355 426 540 639 710 852 1065 1278 1420 1917 2130 2556 3195 3834 4260 6390 7668 9585 12780 19170 38340 81378203 162756406 244134609 325512812 406891015 488269218 732403827 813782030 976538436 1220673045 1464807654 1627564060 2197211481 2441346090 2929615308 3662019135 4394422962 4882692180 5777852413 7324038270 8788845924 10986057405 11555704826 14648076540 17333557239 21972114810 23111409652 28889262065 34667114478 43944229620 52000671717 57778524130 69334228956 86667786195 104001343434 115557048260 156002015151 173335572390 208002686868 260003358585 312004030302 346671144780 520006717170 624008060604 780010075755 1040013434340 1560020151510 3120040303020