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142402465445 = 5158811793369
BaseRepresentation
bin1000010010011111011…
…0010010111010100101
3111121120021100202202212
42010213312102322211
54313120012343240
6145230243013205
713200602661512
oct2044766227245
9447507322685
10142402465445
115543552aa79
122372236a205
1310575531b96
146c6c730309
153a86ad3165
hex2127d92ea5

142402465445 has 8 divisors (see below), whose sum is σ = 170893814040. Its totient is φ = 113914735360.

The previous prime is 142402465423. The next prime is 142402465481. The reversal of 142402465445 is 544564204241.

142402465445 is digitally balanced in base 2, 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 4 ways, for example, as 32550654724 + 109851810721 = 180418^2 + 331439^2 .

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

It is not a de Polignac number, because 142402465445 - 214 = 142402449061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817280 + ... + 976089.

It is an arithmetic number, because the mean of its divisors is an integer number (21361726755).

Almost surely, 2142402465445 is an apocalyptic number.

It is an amenable number.

142402465445 is a deficient number, since it is larger than the sum of its proper divisors (28491348595).

142402465445 is a wasteful number, since it uses less digits than its factorization.

142402465445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809255.

The product of its (nonzero) digits is 614400, while the sum is 41.

Adding to 142402465445 its reverse (544564204241), we get a palindrome (686966669686).

The spelling of 142402465445 in words is "one hundred forty-two billion, four hundred two million, four hundred sixty-five thousand, four hundred forty-five".

Divisors: 1 5 15881 79405 1793369 8966845 28480493089 142402465445