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142245433433 = 8915710180021
BaseRepresentation
bin1000010001111001111…
…1010001000001011001
3111121011022212201100102
42010132133101001121
54312304312332213
6145202513145145
713163655143315
oct2043637210131
9447138781312
10142245433433
1155364925554
122369985b1b5
131054bb4032c
146c55934b45
153a77e15158
hex211e7d1059

142245433433 has 8 divisors (see below), whose sum is σ = 144759912840. Its totient is φ = 139751314560.

The previous prime is 142245433423. The next prime is 142245433481. The reversal of 142245433433 is 334334542241.

It can be written as a sum of positive squares in 4 ways, for example, as 11886886729 + 130358546704 = 109027^2 + 361052^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 142245433433 - 28 = 142245433177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142245433423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5076038 + ... + 5103983.

It is an arithmetic number, because the mean of its divisors is an integer number (18094989105).

Almost surely, 2142245433433 is an apocalyptic number.

It is an amenable number.

142245433433 is a deficient number, since it is larger than the sum of its proper divisors (2514479407).

142245433433 is a wasteful number, since it uses less digits than its factorization.

142245433433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10180267.

The product of its digits is 414720, while the sum is 38.

Adding to 142245433433 its reverse (334334542241), we get a palindrome (476579975674).

The spelling of 142245433433 in words is "one hundred forty-two billion, two hundred forty-five million, four hundred thirty-three thousand, four hundred thirty-three".

Divisors: 1 89 157 13973 10180021 906021869 1598263297 142245433433