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143164724 = 2240987509
BaseRepresentation
bin10001000100010…
…00010100110100
3100222101112002012
420202020110310
5243122232344
622112303352
73355610603
oct1042102464
9328345065
10143164724
11738a385a
123bb41b58
1323877971
1415029a3a
15c87e29e
hex8888534

143164724 has 12 divisors (see below), whose sum is σ = 251153700. Its totient is φ = 71406528.

The previous prime is 143164717. The next prime is 143164757. The reversal of 143164724 is 427461341.

143164724 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 136142224 + 7022500 = 11668^2 + 2650^2 .

It is a super-2 number, since 2×1431647242 = 40992276395992352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42119 + ... + 45390.

It is an arithmetic number, because the mean of its divisors is an integer number (20929475).

Almost surely, 2143164724 is an apocalyptic number.

It is an amenable number.

143164724 is a deficient number, since it is larger than the sum of its proper divisors (107988976).

143164724 is a wasteful number, since it uses less digits than its factorization.

143164724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87922 (or 87920 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 143164724 is about 11965.1462172428. The cubic root of 143164724 is about 523.1328674460.

It can be divided in two parts, 143 and 164724, that multiplied together give a palindrome (23555532).

The spelling of 143164724 in words is "one hundred forty-three million, one hundred sixty-four thousand, seven hundred twenty-four".

Divisors: 1 2 4 409 818 1636 87509 175018 350036 35791181 71582362 143164724