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142472504723 = 183263777421
BaseRepresentation
bin1000010010110000000…
…1011110010110010011
3111121202011011010121012
42010230001132112103
54313240430122343
6145241224121135
713202413210613
oct2045401362623
9447664133535
10142472504723
115547101857a
12237419061ab
1310586bb5543
146c77b62a43
153a8cd1a718
hex212c05e593

142472504723 has 4 divisors (see below), whose sum is σ = 142473465408. Its totient is φ = 142471544040.

The previous prime is 142472504687. The next prime is 142472504747. The reversal of 142472504723 is 327405274241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 327405274241 = 1917231856539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142472504723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142472504753) 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, 205448 + ... + 571973.

It is an arithmetic number, because the mean of its divisors is an integer number (35618366352).

Almost surely, 2142472504723 is an apocalyptic number.

142472504723 is a deficient number, since it is larger than the sum of its proper divisors (960685).

142472504723 is an equidigital number, since it uses as much as digits as its factorization.

142472504723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960684.

The product of its (nonzero) digits is 376320, while the sum is 41.

Adding to 142472504723 its reverse (327405274241), we get a palindrome (469877778964).

The spelling of 142472504723 in words is "one hundred forty-two billion, four hundred seventy-two million, five hundred four thousand, seven hundred twenty-three".

Divisors: 1 183263 777421 142472504723