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144141621 = 31322347263
BaseRepresentation
bin10001001011101…
…10110100110101
3101001020011010120
420211312310311
5243400012441
622145242153
73400116651
oct1045666465
9331204116
10144141621
1174400808
1240333359
1323b2a500
1415201a61
15c9c3966
hex8976d35

144141621 has 48 divisors (see below), whose sum is σ = 222621696. Its totient is φ = 82724928.

The previous prime is 144141607. The next prime is 144141631. The reversal of 144141621 is 126141441.

It is not a de Polignac number, because 144141621 - 210 = 144140597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144141591 and 144141600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144141601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 547936 + ... + 548198.

It is an arithmetic number, because the mean of its divisors is an integer number (4637952).

Almost surely, 2144141621 is an apocalyptic number.

It is an amenable number.

144141621 is a deficient number, since it is larger than the sum of its proper divisors (78480075).

144141621 is a wasteful number, since it uses less digits than its factorization.

144141621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 349 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 144141621 is about 12005.8994248661. The cubic root of 144141621 is about 524.3200521797.

The spelling of 144141621 in words is "one hundred forty-four million, one hundred forty-one thousand, six hundred twenty-one".

Divisors: 1 3 13 23 39 47 69 141 169 263 299 507 611 789 897 1081 1833 3243 3419 3887 6049 7943 10257 11661 12361 14053 18147 23829 37083 42159 44447 78637 133341 160693 182689 235911 284303 482079 548067 852909 1022281 2089009 3066843 3695939 6267027 11087817 48047207 144141621