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144211212 = 22331335289
BaseRepresentation
bin10001001100001…
…11110100001100
3101001100200121000
420212013310030
5243404224322
622150540300
73400526565
oct1046076414
9331320530
10144211212
1174449022
1240367690
1323b530a2
141521d16c
15c9d93ac
hex8987d0c

144211212 has 24 divisors (see below), whose sum is σ = 373881200. Its totient is φ = 48070368.

The previous prime is 144211211. The next prime is 144211213. The reversal of 144211212 is 212112441.

144211212 is a `hidden beast` number, since 1 + 442 + 11 + 212 = 666.

It is an interprime number because it is at equal distance from previous prime (144211211) and next prime (144211213).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 (144211211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667537 + ... + 667752.

Almost surely, 2144211212 is an apocalyptic number.

144211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144211212 is an abundant number, since it is smaller than the sum of its proper divisors (229669988).

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

144211212 is a wasteful number, since it uses less digits than its factorization.

144211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335302 (or 1335294 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 144211212 is about 12008.7972753311. The cubic root of 144211212 is about 524.4044184810.

Adding to 144211212 its reverse (212112441), we get a palindrome (356323653).

The spelling of 144211212 in words is "one hundred forty-four million, two hundred eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1335289 2670578 4005867 5341156 8011734 12017601 16023468 24035202 36052803 48070404 72105606 144211212