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120728588 = 22227132961
BaseRepresentation
bin1110011001000…
…10110000001100
322102011122111012
413030202300030
5221401303323
615551344352
72664114251
oct714426014
9272148435
10120728588
116216a1a2
12345220b8
131c020746
1412069428
15a8eb678
hex7322c0c

120728588 has 12 divisors (see below), whose sum is σ = 212207352. Its totient is φ = 60097920.

The previous prime is 120728581. The next prime is 120728593. The reversal of 120728588 is 885827021.

It is not an unprimeable number, because it can be changed into a prime (120728581) 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 3 ways as a sum of consecutive naturals, for example, 65573 + ... + 67388.

It is an arithmetic number, because the mean of its divisors is an integer number (17683946).

Almost surely, 2120728588 is an apocalyptic number.

It is an amenable number.

120728588 is a deficient number, since it is larger than the sum of its proper divisors (91478764).

120728588 is a wasteful number, since it uses less digits than its factorization.

120728588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133192 (or 133190 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 120728588 is about 10987.6561649881. The cubic root of 120728588 is about 494.2386527383.

The spelling of 120728588 in words is "one hundred twenty million, seven hundred twenty-eight thousand, five hundred eighty-eight".

Divisors: 1 2 4 227 454 908 132961 265922 531844 30182147 60364294 120728588