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142306495967 = 178370970351
BaseRepresentation
bin1000010010001000100…
…0001100110111011111
3111121022120210000101202
42010202020030313133
54312420430332332
6145212534030115
713165326154226
oct2044210146737
9447276700352
10142306495967
1155396341759
12236b61a833b
131055b69cacc
146c5daabcbd
153a7d477a62
hex212220cddf

142306495967 has 4 divisors (see below), whose sum is σ = 150677466336. Its totient is φ = 133935525600.

The previous prime is 142306495957. The next prime is 142306495973. The reversal of 142306495967 is 769594603241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 769594603241 = 6431196881187.

It is a cyclic number.

It is not a de Polignac number, because 142306495967 - 214 = 142306479583 is a prime.

It is a super-2 number, since 2×1423064959672 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142306495927) 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 3 ways as a sum of consecutive naturals, for example, 4185485159 + ... + 4185485192.

It is an arithmetic number, because the mean of its divisors is an integer number (37669366584).

Almost surely, 2142306495967 is an apocalyptic number.

142306495967 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

142306495967 is a deficient number, since it is larger than the sum of its proper divisors (8370970369).

142306495967 is an equidigital number, since it uses as much as digits as its factorization.

142306495967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8370970368.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 142306495967 in words is "one hundred forty-two billion, three hundred six million, four hundred ninety-five thousand, nine hundred sixty-seven".

Divisors: 1 17 8370970351 142306495967