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120020302240 = 2551419752837
BaseRepresentation
bin110111111000111000…
…1000111100110100000
3102110210102101001221021
41233301301013212200
53431300144132430
6131045255335224
711446133510416
oct1576161074640
9373712331837
10120020302240
114699a371533
121b316681514
13b419475227
145b47d0d2b6
1531c6b6607a
hex1bf1c479a0

120020302240 has 48 divisors (see below), whose sum is σ = 283573303272. Its totient is φ = 48003830784.

The previous prime is 120020302183. The next prime is 120020302301. The reversal of 120020302240 is 42203020021.

It can be written as a sum of positive squares in 4 ways, for example, as 93188551824 + 26831750416 = 305268^2 + 163804^2 .

It is a super-4 number, since 4×1200203022404 (a number of 45 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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 7 ways as a sum of consecutive naturals, for example, 2245102 + ... + 2297938.

Almost surely, 2120020302240 is an apocalyptic number.

120020302240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120020302240 is an abundant number, since it is smaller than the sum of its proper divisors (163553001032).

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

120020302240 is a wasteful number, since it uses less digits than its factorization.

120020302240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67049 (or 67041 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 120020302240 its reverse (42203020021), we get a palindrome (162223322261).

The spelling of 120020302240 in words is "one hundred twenty billion, twenty million, three hundred two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 14197 28394 52837 56788 70985 105674 113576 141970 211348 227152 264185 283940 422696 454304 528370 567880 845392 1056740 1135760 1690784 2113480 2271520 4226960 8453920 750126889 1500253778 3000507556 3750634445 6001015112 7501268890 12002030224 15002537780 24004060448 30005075560 60010151120 120020302240