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55160145 = 3254432767
BaseRepresentation
bin1101001001101…
…0110101010001
310211210102111100
43102122311101
5103110111040
65250135013
71236565515
oct322326521
9124712440
1055160145
11291556a7
1216581469
13b574051
14747c145
154c98b30
hex349ad51

55160145 has 24 divisors (see below), whose sum is σ = 95861376. Its totient is φ = 29341728.

The previous prime is 55160143. The next prime is 55160179. The reversal of 55160145 is 54106155.

It is a happy number.

55160145 is a `hidden beast` number, since 5 + 51 + 601 + 4 + 5 = 666.

55160145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55160145 - 21 = 55160143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55160143) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 18552 + ... + 21318.

It is an arithmetic number, because the mean of its divisors is an integer number (3994224).

Almost surely, 255160145 is an apocalyptic number.

It is an amenable number.

55160145 is a deficient number, since it is larger than the sum of its proper divisors (40701231).

55160145 is a wasteful number, since it uses less digits than its factorization.

55160145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221 (or 3218 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 55160145 is about 7426.9876127539. The cubic root of 55160145 is about 380.6639937564.

The spelling of 55160145 in words is "fifty-five million, one hundred sixty thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 45 443 1329 2215 2767 3987 6645 8301 13835 19935 24903 41505 124515 1225781 3677343 6128905 11032029 18386715 55160145