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144120232 = 2318015029
BaseRepresentation
bin10001001011100…
…01100110101000
3101001012001210101
420211301212220
5243343321412
622144555144
73400000414
oct1045614650
9331161711
10144120232
1174396733
1240322ab4
1323b20859
14151d7d44
15c9bc457
hex89719a8

144120232 has 8 divisors (see below), whose sum is σ = 270225450. Its totient is φ = 72060112.

The previous prime is 144120211. The next prime is 144120259. The reversal of 144120232 is 232021441.

It can be written as a sum of positive squares in only one way, i.e., 143856036 + 264196 = 11994^2 + 514^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9007507 + ... + 9007522.

Almost surely, 2144120232 is an apocalyptic number.

It is an amenable number.

144120232 is a deficient number, since it is larger than the sum of its proper divisors (126105218).

144120232 is a wasteful number, since it uses less digits than its factorization.

144120232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18015035 (or 18015031 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 144120232 is about 12005.0086214047. The cubic root of 144120232 is about 524.2941164917.

Adding to 144120232 its reverse (232021441), we get a palindrome (376141673).

The spelling of 144120232 in words is "one hundred forty-four million, one hundred twenty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 18015029 36030058 72060116 144120232