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144110421 = 35741319
BaseRepresentation
bin10001001011011…
…11001101010101
3101001011120100000
420211233031111
5243343013141
622144441513
73366630000
oct1045571525
9331146300
10144110421
117438a324
1240319299
1323b19250
14151d4537
15c9b95b6
hex896f355

144110421 has 120 divisors (see below), whose sum is σ = 285477920. Its totient is φ = 72013536.

The previous prime is 144110401. The next prime is 144110467. The reversal of 144110421 is 124011441.

It is not a de Polignac number, because 144110421 - 25 = 144110389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144110394 and 144110403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144110401) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 7584750 + ... + 7584768.

Almost surely, 2144110421 is an apocalyptic number.

It is an amenable number.

144110421 is a deficient number, since it is larger than the sum of its proper divisors (141367499).

144110421 is an frugal number, since it uses more digits than its factorization.

144110421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 144110421 is about 12004.5999933359. The cubic root of 144110421 is about 524.2822190959.

Adding to 144110421 its reverse (124011441), we get a palindrome (268121862).

The spelling of 144110421 in words is "one hundred forty-four million, one hundred ten thousand, four hundred twenty-one".

Divisors: 1 3 7 9 13 19 21 27 39 49 57 63 81 91 117 133 147 171 189 243 247 273 343 351 399 441 513 567 637 741 819 931 1029 1053 1197 1323 1539 1701 1729 1911 2223 2401 2457 2793 3087 3159 3591 3969 4459 4617 5187 5733 6517 6669 7203 7371 8379 9261 10773 11907 12103 13377 15561 17199 19551 20007 21609 22113 25137 27783 31213 32319 36309 40131 45619 46683 51597 58653 60021 64827 75411 83349 84721 93639 108927 120393 136857 140049 154791 175959 194481 226233 254163 280917 326781 361179 410571 420147 527877 583443 593047 762489 842751 980343 1083537 1231713 1583631 1779141 2287467 2528253 2941029 3695139 5337423 6862401 7584759 11085417 16012269 20587203 48036807 144110421