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120068080 = 24511472903
BaseRepresentation
bin1110010100000…
…01011111110000
322100221002102221
413022001133300
5221214134310
615525250424
72655363466
oct712013760
9270832387
10120068080
1161858a20
1234263a14
131bb4bc02
1411d36836
15a81aada
hex72817f0

120068080 has 80 divisors (see below), whose sum is σ = 311122944. Its totient is φ = 42717440.

The previous prime is 120068077. The next prime is 120068099. The reversal of 120068080 is 80860021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39909 + ... + 42811.

Almost surely, 2120068080 is an apocalyptic number.

120068080 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 120068080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155561472).

120068080 is an abundant number, since it is smaller than the sum of its proper divisors (191054864).

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

120068080 is a wasteful number, since it uses less digits than its factorization.

120068080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974 (or 2968 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 120068080 is about 10957.5581221365. The cubic root of 120068080 is about 493.3356748529.

The spelling of 120068080 in words is "one hundred twenty million, sixty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 47 55 80 88 94 110 176 188 220 235 376 440 470 517 752 880 940 1034 1880 2068 2585 2903 3760 4136 5170 5806 8272 10340 11612 14515 20680 23224 29030 31933 41360 46448 58060 63866 116120 127732 136441 159665 232240 255464 272882 319330 510928 545764 638660 682205 1091528 1277320 1364410 1500851 2183056 2554640 2728820 3001702 5457640 6003404 7504255 10915280 12006808 15008510 24013616 30017020 60034040 120068080