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142536510613 = 720362358659
BaseRepresentation
bin1000010010111111010…
…1101000110010010101
3111121220121120222011201
42010233311220302111
54313403321314423
6145251432032501
713204121230660
oct2045765506225
9447817528151
10142536510613
11554a4165102
122375b232731
1310597235953
146c824646d7
153a937602ad
hex212fd68c95

142536510613 has 4 divisors (see below), whose sum is σ = 162898869280. Its totient is φ = 122174151948.

The previous prime is 142536510607. The next prime is 142536510637. The reversal of 142536510613 is 316015635241.

142536510613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 316015635241 = 727974341053.

It is a cyclic number.

It is not a de Polignac number, because 142536510613 - 29 = 142536510101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142536510643) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10181179323 + ... + 10181179336.

It is an arithmetic number, because the mean of its divisors is an integer number (40724717320).

Almost surely, 2142536510613 is an apocalyptic number.

It is an amenable number.

142536510613 is a deficient number, since it is larger than the sum of its proper divisors (20362358667).

142536510613 is an equidigital number, since it uses as much as digits as its factorization.

142536510613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20362358666.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 142536510613 in words is "one hundred forty-two billion, five hundred thirty-six million, five hundred ten thousand, six hundred thirteen".

Divisors: 1 7 20362358659 142536510613