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56144146 = 2211233571
BaseRepresentation
bin1101011000101…
…1000100010010
310220122102021211
43112023010102
5103333103041
65323210334
71251134362
oct326130422
9126572254
1056144146
1129767a23
12169769aa
13b829bb6
1476569a2
154de0481
hex358b112

56144146 has 16 divisors (see below), whose sum is σ = 85127328. Its totient is φ = 27770400.

The previous prime is 56144093. The next prime is 56144147. The reversal of 56144146 is 64144165.

It is not an unprimeable number, because it can be changed into a prime (56144147) 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 7 ways as a sum of consecutive naturals, for example, 98041 + ... + 98611.

It is an arithmetic number, because the mean of its divisors is an integer number (5320458).

Almost surely, 256144146 is an apocalyptic number.

56144146 is a deficient number, since it is larger than the sum of its proper divisors (28983182).

56144146 is a wasteful number, since it uses less digits than its factorization.

56144146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017.

The product of its digits is 11520, while the sum is 31.

The square root of 56144146 is about 7492.9397435186. The cubic root of 56144146 is about 382.9142188481.

The spelling of 56144146 in words is "fifty-six million, one hundred forty-four thousand, one hundred forty-six".

Divisors: 1 2 211 233 422 466 571 1142 49163 98326 120481 133043 240962 266086 28072073 56144146