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142315111 = 1927072767
BaseRepresentation
bin10000111101110…
…00111001100111
3100220210100122001
420132320321213
5242413040421
622042150131
73345441601
oct1036707147
9326710561
10142315111
11733734a4
123b7b2347
132363b033
1414c88171
15c762691
hex87b8e67

142315111 has 8 divisors (see below), whose sum is σ = 149914880. Its totient is φ = 134726328.

The previous prime is 142315097. The next prime is 142315133. The reversal of 142315111 is 111513241.

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 142315111 - 27 = 142314983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142315181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50050 + ... + 52816.

It is an arithmetic number, because the mean of its divisors is an integer number (18739360).

Almost surely, 2142315111 is an apocalyptic number.

142315111 is a deficient number, since it is larger than the sum of its proper divisors (7599769).

142315111 is a wasteful number, since it uses less digits than its factorization.

142315111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493.

The product of its digits is 120, while the sum is 19.

The square root of 142315111 is about 11929.5897247139. The cubic root of 142315111 is about 522.0959671965.

Adding to 142315111 its reverse (111513241), we get a palindrome (253828352).

The spelling of 142315111 in words is "one hundred forty-two million, three hundred fifteen thousand, one hundred eleven".

Divisors: 1 19 2707 2767 51433 52573 7490269 142315111