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144442212 = 22312036851
BaseRepresentation
bin10001001110000…
…00001101100100
3101001210102110120
420213000031210
5243434122322
622155521540
73402511215
oct1047001544
9331712416
10144442212
1174596632
12404592b0
1323c04285
141527d40c
15ca32a5c
hex89c0364

144442212 has 12 divisors (see below), whose sum is σ = 337031856. Its totient is φ = 48147400.

The previous prime is 144442201. The next prime is 144442213. The reversal of 144442212 is 212244441.

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 not an unprimeable number, because it can be changed into a prime (144442213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6018414 + ... + 6018437.

It is an arithmetic number, because the mean of its divisors is an integer number (28085988).

Almost surely, 2144442212 is an apocalyptic number.

144442212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144442212 is an abundant number, since it is smaller than the sum of its proper divisors (192589644).

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

144442212 is a wasteful number, since it uses less digits than its factorization.

144442212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12036858 (or 12036856 counting only the distinct ones).

The product of its digits is 2048, while the sum is 24.

The square root of 144442212 is about 12018.4113758849. The cubic root of 144442212 is about 524.6842691169.

Adding to 144442212 its reverse (212244441), we get a palindrome (356686653).

The spelling of 144442212 in words is "one hundred forty-four million, four hundred forty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 12036851 24073702 36110553 48147404 72221106 144442212