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144984975 = 3521933133
BaseRepresentation
bin10001010010001…
…00101110001111
3101002210222222220
420221010232033
5244104004400
622215310423
73410231502
oct1051045617
9332728886
10144984975
11749273a3
124067b413
1324064335
1415381139
15cadd7a0
hex8a44b8f

144984975 has 12 divisors (see below), whose sum is σ = 239708616. Its totient is φ = 77325280.

The previous prime is 144984967. The next prime is 144984977. The reversal of 144984975 is 579489441.

It is not a de Polignac number, because 144984975 - 23 = 144984967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144984977) 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 11 ways as a sum of consecutive naturals, for example, 966492 + ... + 966641.

It is an arithmetic number, because the mean of its divisors is an integer number (19975718).

Almost surely, 2144984975 is an apocalyptic number.

144984975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144984975 is a deficient number, since it is larger than the sum of its proper divisors (94723641).

144984975 is a wasteful number, since it uses less digits than its factorization.

144984975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933146 (or 1933141 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 144984975 is about 12040.9706834624. The cubic root of 144984975 is about 525.3406406092.

The spelling of 144984975 in words is "one hundred forty-four million, nine hundred eighty-four thousand, nine hundred seventy-five".

Divisors: 1 3 5 15 25 75 1933133 5799399 9665665 28996995 48328325 144984975