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144161452 = 22191188693
BaseRepresentation
bin10001001011110…
…11101010101100
3101001021011100001
420211323222230
5243401131302
622145514044
73400231531
oct1045735254
9331234301
10144161452
11744146a6
1240342924
1323b36546
1415208d88
15c9c9787
hex897baac

144161452 has 12 divisors (see below), whose sum is σ = 253604736. Its totient is φ = 71702960.

The previous prime is 144161443. The next prime is 144161471. The reversal of 144161452 is 254161441.

It is a self number, because there is not a number n which added to its sum of digits gives 144161452.

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, 93583 + ... + 95110.

It is an arithmetic number, because the mean of its divisors is an integer number (21133728).

Almost surely, 2144161452 is an apocalyptic number.

It is an amenable number.

144161452 is a deficient number, since it is larger than the sum of its proper divisors (109443284).

144161452 is a wasteful number, since it uses less digits than its factorization.

144161452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188888 (or 188886 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 144161452 is about 12006.7252821075. The cubic root of 144161452 is about 524.3440963896.

It can be divided in two parts, 144 and 161452, that added together give a triangular number (161596 = T568).

The spelling of 144161452 in words is "one hundred forty-four million, one hundred sixty-one thousand, four hundred fifty-two".

Divisors: 1 2 4 191 382 764 188693 377386 754772 36040363 72080726 144161452