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143425685 = 51317315379
BaseRepresentation
bin10001000110010…
…00000010010101
3100222212210001102
420203020002111
5243204110220
622122035445
73361045454
oct1043100225
9328783042
10143425685
1173a61927
1240048b85
1323939690
1415096b9b
15c8d1775
hex88c8095

143425685 has 64 divisors (see below), whose sum is σ = 209018880. Its totient is φ = 93450240.

The previous prime is 143425679. The next prime is 143425687. The reversal of 143425685 is 586524341.

It is not a de Polignac number, because 143425685 - 210 = 143424661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143425687) 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, 1815476 + ... + 1815554.

It is an arithmetic number, because the mean of its divisors is an integer number (3265920).

Almost surely, 2143425685 is an apocalyptic number.

It is an amenable number.

143425685 is a deficient number, since it is larger than the sum of its proper divisors (65593195).

143425685 is a wasteful number, since it uses less digits than its factorization.

143425685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its digits is 115200, while the sum is 38.

The square root of 143425685 is about 11976.0463008457. The cubic root of 143425685 is about 523.4505304575.

It can be divided in two parts, 1434256 and 85, that added together give a palindrome (1434341).

The spelling of 143425685 in words is "one hundred forty-three million, four hundred twenty-five thousand, six hundred eighty-five".

Divisors: 1 5 13 17 31 53 65 79 85 155 221 265 395 403 527 689 901 1027 1105 1343 1643 2015 2449 2635 3445 4187 4505 5135 6715 6851 8215 11713 12245 17459 20935 21359 27931 31837 34255 41633 54431 58565 71179 87295 106795 129797 139655 159185 208165 272155 355895 363103 541229 648985 925327 1687361 1815515 2206549 2706145 4626635 8436805 11032745 28685137 143425685