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160449993 = 32112251587
BaseRepresentation
bin10011001000001…
…00010111001001
3102011220201000100
421210010113021
5312033344433
623531000013
73655542144
oct1144042711
9364821010
10160449993
118262a500
1245899009
132731a532
141744905b
15e145b13
hex99045c9

160449993 has 36 divisors (see below), whose sum is σ = 256196304. Its totient is φ = 96690000.

The previous prime is 160449967. The next prime is 160450007. The reversal of 160449993 is 399944061.

It is not a de Polignac number, because 160449993 - 26 = 160449929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (160449593) 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 35 ways as a sum of consecutive naturals, for example, 273046 + ... + 273632.

It is an arithmetic number, because the mean of its divisors is an integer number (7116564).

Almost surely, 2160449993 is an apocalyptic number.

It is an amenable number.

160449993 is a deficient number, since it is larger than the sum of its proper divisors (95746311).

160449993 is a wasteful number, since it uses less digits than its factorization.

160449993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 160449993 is about 12666.8856867029. The cubic root of 160449993 is about 543.3919923203.

The spelling of 160449993 in words is "one hundred sixty million, four hundred forty-nine thousand, nine hundred ninety-three".

Divisors: 1 3 9 11 33 99 121 251 363 587 753 1089 1761 2259 2761 5283 6457 8283 19371 24849 30371 58113 71027 91113 147337 213081 273339 442011 639243 1326033 1620707 4862121 14586363 17827777 53483331 160449993