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120791309080 = 235131989137369
BaseRepresentation
bin111000001111110111…
…0010001101100011000
3102112210011011021111011
41300133232101230120
53434340033342310
6131254000543304
711504215120651
oct1603756215430
9375704137434
10120791309080
11472555aa372
121b4b0921b34
13b5101164b0
145bbc48c528
15321e6b278a
hex1c1fb91b18

120791309080 has 128 divisors (see below), whose sum is σ = 311555160000. Its totient is φ = 41777455104.

The previous prime is 120791309033. The next prime is 120791309141. The reversal of 120791309080 is 80903197021.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 810636 + ... + 948004.

Almost surely, 2120791309080 is an apocalyptic number.

120791309080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120791309080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155777580000).

120791309080 is an abundant number, since it is smaller than the sum of its proper divisors (190763850920).

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

120791309080 is a wasteful number, since it uses less digits than its factorization.

120791309080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137501 (or 137497 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 40.

The spelling of 120791309080 in words is "one hundred twenty billion, seven hundred ninety-one million, three hundred nine thousand, eighty".

Divisors: 1 2 4 5 8 10 13 19 20 26 38 40 52 65 76 89 95 104 130 152 178 190 247 260 356 380 445 494 520 712 760 890 988 1157 1235 1691 1780 1976 2314 2470 3382 3560 4628 4940 5785 6764 8455 9256 9880 11570 13528 16910 21983 23140 33820 43966 46280 67640 87932 109915 137369 175864 219830 274738 439660 549476 686845 879320 1098952 1373690 1785797 2610011 2747380 3571594 5220022 5494760 7143188 8928985 10440044 12225841 13050055 14286376 17857970 20880088 24451682 26100110 33930143 35715940 48903364 52200220 61129205 67860286 71431880 97806728 104400440 122258410 135720572 158935933 169650715 232290979 244516820 271441144 317871866 339301430 464581958 489033640 635743732 678602860 794679665 929163916 1161454895 1271487464 1357205720 1589359330 1858327832 2322909790 3019782727 3178718660 4645819580 6039565454 6357437320 9291639160 12079130908 15098913635 24158261816 30197827270 60395654540 120791309080