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144606845 = 5174333929
BaseRepresentation
bin10001001111010…
…00011001111101
3101002002210022002
420213220121331
5244004404340
622203232045
73404065205
oct1047503175
9332083262
10144606845
1174699299
1240518625
1323c611a6
14152c3405
15ca66715
hex89e867d

144606845 has 16 divisors (see below), whose sum is σ = 184206960. Its totient is φ = 108601344.

The previous prime is 144606829. The next prime is 144606857. The reversal of 144606845 is 548606441.

It can be written as a sum of positive squares in 8 ways, for example, as 16532356 + 128074489 = 4066^2 + 11317^2 .

It is a cyclic number.

It is not a de Polignac number, because 144606845 - 24 = 144606829 is a prime.

It is a super-2 number, since 2×1446068452 = 41822279241708050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144606799 and 144606808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34841 + ... + 38769.

It is an arithmetic number, because the mean of its divisors is an integer number (11512935).

Almost surely, 2144606845 is an apocalyptic number.

It is an amenable number.

144606845 is a deficient number, since it is larger than the sum of its proper divisors (39600115).

144606845 is a wasteful number, since it uses less digits than its factorization.

144606845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384.

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 144606845 is about 12025.2586250775. The cubic root of 144606845 is about 524.8835357683.

The spelling of 144606845 in words is "one hundred forty-four million, six hundred six thousand, eight hundred forty-five".

Divisors: 1 5 17 85 433 2165 3929 7361 19645 36805 66793 333965 1701257 8506285 28921369 144606845