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120281968 = 24371991021
BaseRepresentation
bin1110010101101…
…01101101110000
322101022221211201
413022311231300
5221243010333
615534020544
72660244202
oct712655560
9271287751
10120281968
1161994694
1234347754
131bbc5381
1411d90772
15a85e17d
hex72b5b70

120281968 has 40 divisors (see below), whose sum is σ = 240783200. Its totient is φ = 58164480.

The previous prime is 120281957. The next prime is 120281969. The reversal of 120281968 is 869182021.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120281969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117298 + ... + 118318.

It is an arithmetic number, because the mean of its divisors is an integer number (6019580).

Almost surely, 2120281968 is an apocalyptic number.

It is an amenable number.

120281968 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

120281968 is a wasteful number, since it uses less digits than its factorization.

120281968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 120281968 is about 10967.3136182020. The cubic root of 120281968 is about 493.6284420513.

The spelling of 120281968 in words is "one hundred twenty million, two hundred eighty-one thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 37 74 148 199 296 398 592 796 1021 1592 2042 3184 4084 7363 8168 14726 16336 29452 37777 58904 75554 117808 151108 203179 302216 406358 604432 812716 1625432 3250864 7517623 15035246 30070492 60140984 120281968