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120488745930 = 235717195117299
BaseRepresentation
bin111000000110110110…
…0000101101111001010
3102112000001211110212120
41300031230011233022
53433230104332210
6131203551552110
711463552304440
oct1601554055712
9375001743776
10120488745930
114710a835183
121b42752b636
13b49252bb47
145b9020cb90
153202d49270
hex1c0db05bca

120488745930 has 128 divisors (see below), whose sum is σ = 350123212800. Its totient is φ = 25905484800.

The previous prime is 120488745911. The next prime is 120488745931. The reversal of 120488745930 is 39547884021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (120488745931) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6956421 + ... + 6973719.

It is an arithmetic number, because the mean of its divisors is an integer number (2735337600).

Almost surely, 2120488745930 is an apocalyptic number.

120488745930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120488745930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175061606400).

120488745930 is an abundant number, since it is smaller than the sum of its proper divisors (229634466870).

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

120488745930 is a wasteful number, since it uses less digits than its factorization.

120488745930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19284.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 120488745930 in words is "one hundred twenty billion, four hundred eighty-eight million, seven hundred forty-five thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 17 21 30 34 35 42 51 70 85 102 105 119 170 210 238 255 357 510 595 714 1190 1785 1951 3570 3902 5853 9755 11706 13657 17299 19510 27314 29265 33167 34598 40971 51897 58530 66334 68285 81942 86495 99501 103794 121093 136570 165835 172990 199002 204855 232169 242186 259485 294083 331670 363279 409710 464338 497505 518970 588166 605465 696507 726558 882249 995010 1160845 1210930 1393014 1470415 1764498 1816395 2058581 2321690 2940830 3482535 3632790 4117162 4411245 6175743 6965070 8822490 10292905 12351486 20585810 30878715 33750349 61757430 67500698 101251047 168751745 202502094 236252443 337503490 472504886 506255235 573755933 708757329 1012510470 1147511866 1181262215 1417514658 1721267799 2362524430 2868779665 3442535598 3543786645 4016291531 5737559330 7087573290 8032583062 8606338995 12048874593 17212677990 20081457655 24097749186 40162915310 60244372965 120488745930