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144987056 = 2443832539
BaseRepresentation
bin10001010010001…
…01001110110000
3101002211002211222
420221011032300
5244104041211
622215324212
73410240534
oct1051051660
9332732758
10144987056
1174928a15
1240680668
1324065276
1415381bc4
15cade1db
hex8a453b0

144987056 has 40 divisors (see below), whose sum is σ = 291023040. Its totient is φ = 69926976.

The previous prime is 144987049. The next prime is 144987071. The reversal of 144987056 is 650789441.

It is a junction number, because it is equal to n+sod(n) for n = 144986998 and 144987016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55835 + ... + 58373.

It is an arithmetic number, because the mean of its divisors is an integer number (7275576).

Almost surely, 2144987056 is an apocalyptic number.

144987056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

144987056 is an abundant number, since it is smaller than the sum of its proper divisors (146035984).

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

144987056 is a wasteful number, since it uses less digits than its factorization.

144987056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673 (or 2667 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 144987056 is about 12041.0570964513. The cubic root of 144987056 is about 525.3431540389.

The spelling of 144987056 in words is "one hundred forty-four million, nine hundred eighty-seven thousand, fifty-six".

Divisors: 1 2 4 8 16 43 83 86 166 172 332 344 664 688 1328 2539 3569 5078 7138 10156 14276 20312 28552 40624 57104 109177 210737 218354 421474 436708 842948 873416 1685896 1746832 3371792 9061691 18123382 36246764 72493528 144987056