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144131244 = 22312010937
BaseRepresentation
bin10001001011101…
…00010010101100
3101001012121220020
420211310102230
5243344144434
622145122140
73400044465
oct1045642254
9331177806
10144131244
11743a3a34
1240329350
1323b2587a
14151dbd6c
15c9c0849
hex89744ac

144131244 has 12 divisors (see below), whose sum is σ = 336306264. Its totient is φ = 48043744.

The previous prime is 144131213. The next prime is 144131257. The reversal of 144131244 is 442131441.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

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, 6005457 + ... + 6005480.

It is an arithmetic number, because the mean of its divisors is an integer number (28025522).

Almost surely, 2144131244 is an apocalyptic number.

It is an amenable number.

144131244 is an abundant number, since it is smaller than the sum of its proper divisors (192175020).

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

144131244 is a wasteful number, since it uses less digits than its factorization.

144131244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12010944 (or 12010942 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 144131244 is about 12005.4672545470. The cubic root of 144131244 is about 524.3074696476.

Adding to 144131244 its reverse (442131441), we get a palindrome (586262685).

The spelling of 144131244 in words is "one hundred forty-four million, one hundred thirty-one thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 12010937 24021874 36032811 48043748 72065622 144131244