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142348649923 = 319817467749
BaseRepresentation
bin1000010010010010100…
…1000000010111000011
3111121102112002122202101
42010210221000113003
54313012223244143
6145221041331231
713166350363114
oct2044451002703
9447375078671
10142348649923
1155408113637
1223708336b17
131056733bb8c
146c6552220b
153a82002b4d
hex2124a405c3

142348649923 has 8 divisors (see below), whose sum is σ = 146955824000. Its totient is φ = 137742431040.

The previous prime is 142348649921. The next prime is 142348649999. The reversal of 142348649923 is 329946843241.

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 142348649923 - 21 = 142348649921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142348649921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70453 + ... + 538201.

It is an arithmetic number, because the mean of its divisors is an integer number (18369478000).

Almost surely, 2142348649923 is an apocalyptic number.

142348649923 is a deficient number, since it is larger than the sum of its proper divisors (4607174077).

142348649923 is an equidigital number, since it uses as much as digits as its factorization.

142348649923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477597.

The product of its digits is 8957952, while the sum is 55.

The spelling of 142348649923 in words is "one hundred forty-two billion, three hundred forty-eight million, six hundred forty-nine thousand, nine hundred twenty-three".

Divisors: 1 31 9817 304327 467749 14500219 4591891933 142348649923