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143172314 = 2371934761
BaseRepresentation
bin10001000100010…
…10001011011010
3100222101220111022
420202022023122
5243123003224
622112402442
73355641665
oct1042121332
9328356438
10143172314
11738a952a
123bb46422
132387b25c
141502c6dc
15c88165e
hex888a2da

143172314 has 8 divisors (see below), whose sum is σ = 220562868. Its totient is φ = 69651360.

The previous prime is 143172259. The next prime is 143172319. The reversal of 143172314 is 413271341.

It can be written as a sum of positive squares in 2 ways, for example, as 137007025 + 6165289 = 11705^2 + 2483^2 .

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

It is a super-2 number, since 2×1431723142 = 40996622992229192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143172319) 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, 967307 + ... + 967454.

Almost surely, 2143172314 is an apocalyptic number.

143172314 is a deficient number, since it is larger than the sum of its proper divisors (77390554).

143172314 is a wasteful number, since it uses less digits than its factorization.

143172314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934800.

The product of its digits is 2016, while the sum is 26.

The square root of 143172314 is about 11965.4633842572. The cubic root of 143172314 is about 523.1421120611.

The spelling of 143172314 in words is "one hundred forty-three million, one hundred seventy-two thousand, three hundred fourteen".

Divisors: 1 2 37 74 1934761 3869522 71586157 143172314