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142223404045 = 5372263733961
BaseRepresentation
bin1000010001110100101…
…1001110110000001101
3111121002210102111201011
42010131023032300031
54312233142412140
6145200405045221
713163266662562
oct2043513166015
9447083374634
10142223404045
1155353449548
12236923b6811
13105473c92a8
146c52a3c869
153a76012cea
hex211d2cec0d

142223404045 has 16 divisors (see below), whose sum is σ = 175293640368. Its totient is φ = 110695472640.

The previous prime is 142223404007. The next prime is 142223404051. The reversal of 142223404045 is 540404322241.

It can be written as a sum of positive squares in 8 ways, for example, as 8440831876 + 133782572169 = 91874^2 + 365763^2 .

It is not a de Polignac number, because 142223404045 - 29 = 142223403533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142223403998 and 142223404016.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4170865 + ... + 4204825.

It is an arithmetic number, because the mean of its divisors is an integer number (10955852523).

Almost surely, 2142223404045 is an apocalyptic number.

It is an amenable number.

142223404045 is a deficient number, since it is larger than the sum of its proper divisors (33070236323).

142223404045 is a wasteful number, since it uses less digits than its factorization.

142223404045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56640.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 142223404045 its reverse (540404322241), we get a palindrome (682627726286).

The spelling of 142223404045 in words is "one hundred forty-two billion, two hundred twenty-three million, four hundred four thousand, forty-five".

Divisors: 1 5 37 185 22637 33961 113185 169805 837569 1256557 4187845 6282785 768775157 3843875785 28444680809 142223404045