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144146044 = 2272735439
BaseRepresentation
bin10001001011101…
…11111001111100
3101001020101012101
420211313321330
5243400133134
622145314444
73400135600
oct1045677174
9331211171
10144146044
1174404069
1240335a24
1323b2c523
1415203500
15c9c4e14
hex8977e7c

144146044 has 18 divisors (see below), whose sum is σ = 293440560. Its totient is φ = 61776792.

The previous prime is 144146033. The next prime is 144146053. The reversal of 144146044 is 440641441.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367524 + ... + 367915.

Almost surely, 2144146044 is an apocalyptic number.

144146044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

144146044 is an abundant number, since it is smaller than the sum of its proper divisors (149294516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144146044 is a wasteful number, since it uses less digits than its factorization.

144146044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735457 (or 735448 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 144146044 is about 12006.0836245630. The cubic root of 144146044 is about 524.3254150626.

Adding to 144146044 its reverse (440641441), we get a palindrome (584787485).

The spelling of 144146044 in words is "one hundred forty-four million, one hundred forty-six thousand, forty-four".

Divisors: 1 2 4 7 14 28 49 98 196 735439 1470878 2941756 5148073 10296146 20592292 36036511 72073022 144146044