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120310421320 = 23541269327241
BaseRepresentation
bin111000000001100001…
…1110101011101001000
3102111112122021122111101
41300003003311131020
53432343431440240
6131134141511144
711456255464555
oct1600303653510
9374478248441
10120310421320
1147029107271
121b3978724b4
13b4645c371b
145b7466da2c
1531e237239a
hex1c030f5748

120310421320 has 64 divisors (see below), whose sum is σ = 277414003440. Its totient is φ = 46931251200.

The previous prime is 120310421267. The next prime is 120310421347. The reversal of 120310421320 is 23124013021.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 56593555236 + 63716866084 = 237894^2 + 252422^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4402900 + ... + 4430140.

Almost surely, 2120310421320 is an apocalyptic number.

120310421320 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 120310421320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138707001720).

120310421320 is an abundant number, since it is smaller than the sum of its proper divisors (157103582120).

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

120310421320 is a wasteful number, since it uses less digits than its factorization.

120310421320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29986 (or 29982 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 120310421320 its reverse (23124013021), we get a palindrome (143434434341).

The spelling of 120310421320 in words is "one hundred twenty billion, three hundred ten million, four hundred twenty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 2693 5386 10772 13465 21544 26930 27241 53860 54482 107720 108964 110413 136205 217928 220826 272410 441652 544820 552065 883304 1089640 1104130 1116881 2208260 2233762 4416520 4467524 5584405 8935048 11168810 22337620 44675240 73360013 146720026 293440052 366800065 586880104 733600130 1467200260 2934400520 3007760533 6015521066 12031042132 15038802665 24062084264 30077605330 60155210660 120310421320