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144724212 = 22331340039
BaseRepresentation
bin10001010000001…
…01000011110100
3101002022202022000
420220011003310
5244022133322
622205535300
73405064323
oct1050050364
9332282260
10144724212
1174769496
1240574530
1323ca2739
14153140ba
15ca8b3ac
hex8a050f4

144724212 has 24 divisors (see below), whose sum is σ = 375211200. Its totient is φ = 48241368.

The previous prime is 144724207. The next prime is 144724259. The reversal of 144724212 is 212427441.

144724212 is a `hidden beast` number, since 1 + 447 + 2 + 4 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669912 + ... + 670127.

It is an arithmetic number, because the mean of its divisors is an integer number (15633800).

Almost surely, 2144724212 is an apocalyptic number.

144724212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144724212 is an abundant number, since it is smaller than the sum of its proper divisors (230486988).

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

144724212 is a wasteful number, since it uses less digits than its factorization.

144724212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340052 (or 1340044 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 144724212 is about 12030.1376550728. The cubic root of 144724212 is about 525.0255008021.

The spelling of 144724212 in words is "one hundred forty-four million, seven hundred twenty-four thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1340039 2680078 4020117 5360156 8040234 12060351 16080468 24120702 36181053 48241404 72362106 144724212