Search a number
-
+
143070101 = 257556693
BaseRepresentation
bin10001000011100…
…01001110010101
3100222012201021122
420201301032111
5243111220401
622110253325
73355034666
oct1041611625
9328181248
10143070101
1173839759
123bab7245
1323843885
141500336d
15c86121b
hex8871395

143070101 has 4 divisors (see below), whose sum is σ = 143627052. Its totient is φ = 142513152.

The previous prime is 143070061. The next prime is 143070119. The reversal of 143070101 is 101070341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65189476 + 77880625 = 8074^2 + 8825^2 .

It is a cyclic number.

It is not a de Polignac number, because 143070101 - 218 = 142807957 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143070101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143070121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278090 + ... + 278603.

It is an arithmetic number, because the mean of its divisors is an integer number (35906763).

Almost surely, 2143070101 is an apocalyptic number.

It is an amenable number.

143070101 is a deficient number, since it is larger than the sum of its proper divisors (556951).

143070101 is an equidigital number, since it uses as much as digits as its factorization.

143070101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556950.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 143070101 is about 11961.1914540317. The cubic root of 143070101 is about 523.0175892557.

The spelling of 143070101 in words is "one hundred forty-three million, seventy thousand, one hundred one".

Divisors: 1 257 556693 143070101