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143834216 = 2317979277
BaseRepresentation
bin10001001001010…
…11110001101000
3101000122112110012
420210223301220
5243310143331
622134511052
73364366511
oct1044536150
9330575405
10143834216
1174210859
1240205488
1323a50606
1415161a08
15c96282b
hex892bc68

143834216 has 8 divisors (see below), whose sum is σ = 269689170. Its totient is φ = 71917104.

The previous prime is 143834149. The next prime is 143834227. The reversal of 143834216 is 612438341.

It can be written as a sum of positive squares in only one way, i.e., 127464100 + 16370116 = 11290^2 + 4046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8989631 + ... + 8989646.

Almost surely, 2143834216 is an apocalyptic number.

It is an amenable number.

143834216 is a deficient number, since it is larger than the sum of its proper divisors (125854954).

143834216 is a wasteful number, since it uses less digits than its factorization.

143834216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17979283 (or 17979279 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 143834216 is about 11993.0903440273. The cubic root of 143834216 is about 523.9470548452.

The spelling of 143834216 in words is "one hundred forty-three million, eight hundred thirty-four thousand, two hundred sixteen".

Divisors: 1 2 4 8 17979277 35958554 71917108 143834216