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143201404 = 221719236179
BaseRepresentation
bin10001000100100…
…01010001111100
3100222110101101201
420202101101330
5243124421104
622113145244
73356122543
oct1042212174
9328411351
10143201404
1173919375
123bb5b224
132388b578
141503915a
15c88a0a4
hex889147c

143201404 has 96 divisors (see below), whose sum is σ = 299980800. Its totient is φ = 59304960.

The previous prime is 143201371. The next prime is 143201413. The reversal of 143201404 is 404102341.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1812637 + ... + 1812715.

It is an arithmetic number, because the mean of its divisors is an integer number (3124800).

Almost surely, 2143201404 is an apocalyptic number.

It is an amenable number.

143201404 is an abundant number, since it is smaller than the sum of its proper divisors (156779396).

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

143201404 is a wasteful number, since it uses less digits than its factorization.

143201404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 143201404 is about 11966.6789043577. The cubic root of 143201404 is about 523.1775406367.

Adding to 143201404 its reverse (404102341), we get a palindrome (547303745).

The spelling of 143201404 in words is "one hundred forty-three million, two hundred one thousand, four hundred four".

Divisors: 1 2 4 17 19 23 34 38 46 61 68 76 79 92 122 158 244 316 323 391 437 646 782 874 1037 1159 1292 1343 1403 1501 1564 1748 1817 2074 2318 2686 2806 3002 3634 4148 4636 4819 5372 5612 6004 7268 7429 9638 14858 19276 19703 23851 25517 26657 29716 30889 34523 39406 47702 51034 53314 61778 69046 78812 81923 91561 95404 102068 106628 110837 123556 138092 163846 183122 221674 327692 366244 443348 453169 586891 906338 1173782 1556537 1812676 1884229 2105903 2347564 3113074 3768458 4211806 6226148 7536916 8423612 35800351 71600702 143201404