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144202052 = 2250371671
BaseRepresentation
bin10001001100001…
…01100101000100
3101001100020000202
420212011211010
5243403431202
622150430032
73400461101
oct1046054504
9331306022
10144202052
1174442155
1240362318
1323b4bb77
1415219aa8
15c9d6802
hex8985944

144202052 has 12 divisors (see below), whose sum is σ = 252858816. Its totient is φ = 71956680.

The previous prime is 144202021. The next prime is 144202067. The reversal of 144202052 is 250202441.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33824 + ... + 37847.

It is an arithmetic number, because the mean of its divisors is an integer number (21071568).

Almost surely, 2144202052 is an apocalyptic number.

It is an amenable number.

144202052 is a deficient number, since it is larger than the sum of its proper divisors (108656764).

144202052 is a wasteful number, since it uses less digits than its factorization.

144202052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72178 (or 72176 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 144202052 is about 12008.4158822053. The cubic root of 144202052 is about 524.3933152153.

Adding to 144202052 its reverse (250202441), we get a palindrome (394404493).

The spelling of 144202052 in words is "one hundred forty-four million, two hundred two thousand, fifty-two".

Divisors: 1 2 4 503 1006 2012 71671 143342 286684 36050513 72101026 144202052