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142914602639 = 823173650793
BaseRepresentation
bin1000010100011001011…
…1111100011010001111
3111122212222001000221002
42011012113330122033
54320142114241024
6145353135530515
713216362036044
oct2050627743217
9448788030832
10142914602639
1155678627256
1223845989a3b
1310627676543
146cba7651cb
153ab6a476ae
hex21465fc68f

142914602639 has 4 divisors (see below), whose sum is σ = 143088254256. Its totient is φ = 142740951024.

The previous prime is 142914602609. The next prime is 142914602681. The reversal of 142914602639 is 936206419241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936206419241 = 2654833526427.

It is a cyclic number.

It is not a de Polignac number, because 142914602639 - 224 = 142897825423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142914602593 and 142914602602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142914602609) 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, 86824574 + ... + 86826219.

It is an arithmetic number, because the mean of its divisors is an integer number (35772063564).

Almost surely, 2142914602639 is an apocalyptic number.

142914602639 is a deficient number, since it is larger than the sum of its proper divisors (173651617).

142914602639 is an equidigital number, since it uses as much as digits as its factorization.

142914602639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173651616.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 142914602639 in words is "one hundred forty-two billion, nine hundred fourteen million, six hundred two thousand, six hundred thirty-nine".

Divisors: 1 823 173650793 142914602639