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142315743 = 3232062547
BaseRepresentation
bin10000111101110…
…01000011011111
3100220210101111110
420132321003133
5242413100433
622042153103
73345443463
oct1036710337
9326711443
10142315743
1173373a19
123b7b2793
132363b3cb
1414c884a3
15c762963
hex87b90df

142315743 has 8 divisors (see below), whose sum is σ = 198004608. Its totient is φ = 90752024.

The previous prime is 142315739. The next prime is 142315751. The reversal of 142315743 is 347513241.

It is a happy number.

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 142315743 - 22 = 142315739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142315743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142315753) 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, 1031205 + ... + 1031342.

It is an arithmetic number, because the mean of its divisors is an integer number (24750576).

Almost surely, 2142315743 is an apocalyptic number.

142315743 is a deficient number, since it is larger than the sum of its proper divisors (55688865).

142315743 is a wasteful number, since it uses less digits than its factorization.

142315743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062573.

The product of its digits is 10080, while the sum is 30.

The square root of 142315743 is about 11929.6162134412. The cubic root of 142315743 is about 522.0967400453.

Adding to 142315743 its reverse (347513241), we get a palindrome (489828984).

The spelling of 142315743 in words is "one hundred forty-two million, three hundred fifteen thousand, seven hundred forty-three".

Divisors: 1 3 23 69 2062547 6187641 47438581 142315743