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144103407 = 37172931449
BaseRepresentation
bin10001001011011…
…01011111101111
3101001011012201020
420211231133233
5243342302112
622144345223
73366600360
oct1045553757
9331135636
10144103407
1174385028
1240315213
1323b15cb6
14151d1b67
15c9b748c
hex896d7ef

144103407 has 64 divisors (see below), whose sum is σ = 248832000. Its totient is φ = 72253440.

The previous prime is 144103403. The next prime is 144103409. The reversal of 144103407 is 704301441.

It is not a de Polignac number, because 144103407 - 22 = 144103403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144103403) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 320719 + ... + 321167.

It is an arithmetic number, because the mean of its divisors is an integer number (3888000).

Almost surely, 2144103407 is an apocalyptic number.

144103407 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

144103407 is a deficient number, since it is larger than the sum of its proper divisors (104728593).

144103407 is a wasteful number, since it uses less digits than its factorization.

144103407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 144103407 is about 12004.3078517672. The cubic root of 144103407 is about 524.2737131759.

Adding to 144103407 its reverse (704301441), we get a palindrome (848404848).

The spelling of 144103407 in words is "one hundred forty-four million, one hundred three thousand, four hundred seven".

Divisors: 1 3 7 17 21 29 31 51 87 93 119 203 217 357 449 493 527 609 651 899 1347 1479 1581 2697 3143 3451 3689 6293 7633 9429 10353 11067 13021 13919 15283 18879 22899 39063 41757 45849 53431 91147 97433 106981 160293 221357 236623 273441 292299 320943 403651 664071 709869 1210953 1549499 1656361 2825557 4648497 4969083 6862067 8476671 20586201 48034469 144103407