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143478052 = 2235869513
BaseRepresentation
bin10001000110101…
…00110100100100
3100222222102212221
420203110310210
5243212244202
622123122124
73361354234
oct1043246444
9328872787
10143478052
1173a98203
1240073344
1323957473
14150abcc4
15c8e2037
hex88d4d24

143478052 has 6 divisors (see below), whose sum is σ = 251086598. Its totient is φ = 71739024.

The previous prime is 143478043. The next prime is 143478053. The reversal of 143478052 is 250874341.

It can be written as a sum of positive squares in only one way, i.e., 128686336 + 14791716 = 11344^2 + 3846^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143477999 and 143478017.

It is not an unprimeable number, because it can be changed into a prime (143478053) by changing a digit.

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 as a sum of consecutive naturals, namely, 17934753 + ... + 17934760.

Almost surely, 2143478052 is an apocalyptic number.

It is an amenable number.

143478052 is a deficient number, since it is larger than the sum of its proper divisors (107608546).

143478052 is a wasteful number, since it uses less digits than its factorization.

143478052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35869517 (or 35869515 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 143478052 is about 11978.2324238595. The cubic root of 143478052 is about 523.5142294119.

The spelling of 143478052 in words is "one hundred forty-three million, four hundred seventy-eight thousand, fifty-two".

Divisors: 1 2 4 35869513 71739026 143478052