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143387344 = 248961709
BaseRepresentation
bin10001000101111…
…10101011010000
3100222210211110101
420202332223100
5243201343334
622121142144
73360525622
oct1042765320
9328724411
10143387344
1173a36041
124002a954
13239250a9
1415086c12
15c8c5214
hex88bead0

143387344 has 10 divisors (see below), whose sum is σ = 277813010. Its totient is φ = 71693664.

The previous prime is 143387341. The next prime is 143387347. The reversal of 143387344 is 443783341.

It is an interprime number because it is at equal distance from previous prime (143387341) and next prime (143387347).

It can be written as a sum of positive squares in only one way, i.e., 143041600 + 345744 = 11960^2 + 588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143387341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4480839 + ... + 4480870.

It is an arithmetic number, because the mean of its divisors is an integer number (27781301).

Almost surely, 2143387344 is an apocalyptic number.

It is an amenable number.

143387344 is a deficient number, since it is larger than the sum of its proper divisors (134425666).

143387344 is an equidigital number, since it uses as much as digits as its factorization.

143387344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8961717 (or 8961711 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 143387344 is about 11974.4454568886. The cubic root of 143387344 is about 523.4038828262.

The spelling of 143387344 in words is "one hundred forty-three million, three hundred eighty-seven thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 8961709 17923418 35846836 71693672 143387344