Search a number
-
+
142752313123 = 720393187589
BaseRepresentation
bin1000010011110010110…
…0110110111100100011
3111122110122122212120021
42010330230312330203
54314324043004443
6145325101254311
713212351432550
oct2047454667443
9448418585507
10142752313123
11555a4a60792
12237bb564397
13105ccb63944
146ca2d9ba27
153aa768b9ed
hex213cb36f23

142752313123 has 4 divisors (see below), whose sum is σ = 163145500720. Its totient is φ = 122359125528.

The previous prime is 142752313111. The next prime is 142752313159. The reversal of 142752313123 is 321313257241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321313257241 = 2059671560023.

It is a cyclic number.

It is not a de Polignac number, because 142752313123 - 25 = 142752313091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142752313183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10196593788 + ... + 10196593801.

It is an arithmetic number, because the mean of its divisors is an integer number (40786375180).

Almost surely, 2142752313123 is an apocalyptic number.

142752313123 is a deficient number, since it is larger than the sum of its proper divisors (20393187597).

142752313123 is an equidigital number, since it uses as much as digits as its factorization.

142752313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20393187596.

The product of its digits is 30240, while the sum is 34.

The spelling of 142752313123 in words is "one hundred forty-two billion, seven hundred fifty-two million, three hundred thirteen thousand, one hundred twenty-three".

Divisors: 1 7 20393187589 142752313123