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143470146 = 2323911691
BaseRepresentation
bin10001000110100…
…10111001000010
3100222222001001010
420203102321002
5243212021041
622123021350
73361322211
oct1043227102
9328861033
10143470146
1173a92276
124006a856
13239539a1
14150a9078
15c8dea16
hex88d2e42

143470146 has 8 divisors (see below), whose sum is σ = 286940304. Its totient is φ = 47823380.

The previous prime is 143470141. The next prime is 143470147. The reversal of 143470146 is 641074341.

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

143470146 is an admirable number.

It is a super-2 number, since 2×1434701462 = 41167365586522632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143470141) 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 in 3 ways as a sum of consecutive naturals, for example, 11955840 + ... + 11955851.

It is an arithmetic number, because the mean of its divisors is an integer number (35867538).

Almost surely, 2143470146 is an apocalyptic number.

143470146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

143470146 is a wasteful number, since it uses less digits than its factorization.

143470146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23911696.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 143470146 is about 11977.9024040105. The cubic root of 143470146 is about 523.5046135869.

The spelling of 143470146 in words is "one hundred forty-three million, four hundred seventy thousand, one hundred forty-six".

Divisors: 1 2 3 6 23911691 47823382 71735073 143470146