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142751423 = 646922067
BaseRepresentation
bin10001000001000…
…11011010111111
3100221121112010202
420200203122333
5243021021143
622055354115
73352236623
oct1040433277
9327545122
10142751423
1173641291
123b98293b
13237617c9
1414d5d183
15c7ebab8
hex88236bf

142751423 has 4 divisors (see below), whose sum is σ = 142779960. Its totient is φ = 142722888.

The previous prime is 142751383. The next prime is 142751449. The reversal of 142751423 is 324157241.

142751423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142751423 - 26 = 142751359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142751723) 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, 4565 + ... + 17502.

It is an arithmetic number, because the mean of its divisors is an integer number (35694990).

Almost surely, 2142751423 is an apocalyptic number.

142751423 is a deficient number, since it is larger than the sum of its proper divisors (28537).

142751423 is an equidigital number, since it uses as much as digits as its factorization.

142751423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28536.

The product of its digits is 6720, while the sum is 29.

The square root of 142751423 is about 11947.8626958967. The cubic root of 142751423 is about 522.6289729924.

The spelling of 142751423 in words is "one hundred forty-two million, seven hundred fifty-one thousand, four hundred twenty-three".

Divisors: 1 6469 22067 142751423