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120161349 = 3271131433
BaseRepresentation
bin1110010100110…
…00010001000101
322101002211101100
413022120101011
5221230130344
615531250313
72656232430
oct712302105
9271084340
10120161349
1161912000
12342a9999
131bb824b9
1411d5c817
15a838569
hex7298445

120161349 has 48 divisors (see below), whose sum is σ = 218335104. Its totient is φ = 62377920.

The previous prime is 120161333. The next prime is 120161359. The reversal of 120161349 is 943161021.

120161349 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 613 + 49 = 666.

It is not a de Polignac number, because 120161349 - 24 = 120161333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120161309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83137 + ... + 84569.

It is an arithmetic number, because the mean of its divisors is an integer number (4548648).

Almost surely, 2120161349 is an apocalyptic number.

It is an amenable number.

120161349 is a deficient number, since it is larger than the sum of its proper divisors (98173755).

120161349 is a wasteful number, since it uses less digits than its factorization.

120161349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 120161349 is about 10961.8132167995. The cubic root of 120161349 is about 493.4633829996.

The spelling of 120161349 in words is "one hundred twenty million, one hundred sixty-one thousand, three hundred forty-nine".

Divisors: 1 3 7 9 11 21 33 63 77 99 121 231 363 693 847 1089 1331 1433 2541 3993 4299 7623 9317 10031 11979 12897 15763 27951 30093 47289 83853 90279 110341 141867 173393 331023 520179 993069 1213751 1560537 1907323 3641253 5721969 10923759 13351261 17165907 40053783 120161349