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144243042 = 23293472389
BaseRepresentation
bin10001001100011…
…11100101100010
3101001102022020220
420212033211202
5243411234132
622151343510
73401021436
oct1046174542
9331368226
10144243042
117446aa29
1240381b96
1323b64718
141522a9c6
15c9e3a2c
hex898f962

144243042 has 32 divisors (see below), whose sum is σ = 299419200. Its totient is φ = 46269888.

The previous prime is 144243017. The next prime is 144243059. The reversal of 144243042 is 240342441.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 59184 + ... + 61572.

It is an arithmetic number, because the mean of its divisors is an integer number (9356850).

Almost surely, 2144243042 is an apocalyptic number.

144243042 is an abundant number, since it is smaller than the sum of its proper divisors (155176158).

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

144243042 is a wasteful number, since it uses less digits than its factorization.

144243042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 144243042 is about 12010.1224806411. The cubic root of 144243042 is about 524.4429974617.

Adding to 144243042 its reverse (240342441), we get a palindrome (384585483).

The spelling of 144243042 in words is "one hundred forty-four million, two hundred forty-three thousand, forty-two".

Divisors: 1 2 3 6 29 58 87 174 347 694 1041 2082 2389 4778 7167 10063 14334 20126 30189 60378 69281 138562 207843 415686 828983 1657966 2486949 4973898 24040507 48081014 72121521 144243042