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144715892 = 2271509563
BaseRepresentation
bin10001010000000…
…11000001110100
3101002022022212212
420220003001310
5244021402032
622205432552
73405031136
oct1050030164
9332268785
10144715892
1174763212
124056b758
1323c9ba09
1415311056
15ca88bb2
hex8a03074

144715892 has 12 divisors (see below), whose sum is σ = 256820256. Its totient is φ = 71338680.

The previous prime is 144715871. The next prime is 144715933. The reversal of 144715892 is 298517441.

It is a congruent number.

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, 254498 + ... + 255065.

It is an arithmetic number, because the mean of its divisors is an integer number (21401688).

Almost surely, 2144715892 is an apocalyptic number.

It is an amenable number.

144715892 is a deficient number, since it is larger than the sum of its proper divisors (112104364).

144715892 is a wasteful number, since it uses less digits than its factorization.

144715892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509638 (or 509636 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 144715892 is about 12029.7918518984. The cubic root of 144715892 is about 525.0154396064.

The spelling of 144715892 in words is "one hundred forty-four million, seven hundred fifteen thousand, eight hundred ninety-two".

Divisors: 1 2 4 71 142 284 509563 1019126 2038252 36178973 72357946 144715892