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143808445 = 5112614699
BaseRepresentation
bin10001001001001…
…01011110111101
3101000121020002201
420210211132331
5243303332240
622134151501
73364231414
oct1044453675
9330536081
10143808445
11741a3460
12401b2591
1323a41971
141515647b
15c959d9a
hex89257bd

143808445 has 8 divisors (see below), whose sum is σ = 188258400. Its totient is φ = 104587920.

The previous prime is 143808409. The next prime is 143808449. The reversal of 143808445 is 544808341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143808445 - 29 = 143807933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143808449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307295 + ... + 1307404.

It is an arithmetic number, because the mean of its divisors is an integer number (23532300).

Almost surely, 2143808445 is an apocalyptic number.

It is an amenable number.

143808445 is a deficient number, since it is larger than the sum of its proper divisors (44449955).

143808445 is a wasteful number, since it uses less digits than its factorization.

143808445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614715.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 143808445 is about 11992.0158855799. The cubic root of 143808445 is about 523.9157608401.

The spelling of 143808445 in words is "one hundred forty-three million, eight hundred eight thousand, four hundred forty-five".

Divisors: 1 5 11 55 2614699 13073495 28761689 143808445