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142405714 = 2116472987
BaseRepresentation
bin10000111110011…
…11000001010010
3100220221221220201
420133033001102
5242423440324
622044125414
73346300003
oct1037170122
9326857821
10142405714
1173425580
123b83686a
1323670349
1414cad1aa
15c77e444
hex87cf052

142405714 has 8 divisors (see below), whose sum is σ = 233027568. Its totient is φ = 64729860.

The previous prime is 142405693. The next prime is 142405717. The reversal of 142405714 is 417504241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (142405717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3236472 + ... + 3236515.

It is an arithmetic number, because the mean of its divisors is an integer number (29128446).

Almost surely, 2142405714 is an apocalyptic number.

142405714 is a deficient number, since it is larger than the sum of its proper divisors (90621854).

142405714 is a wasteful number, since it uses less digits than its factorization.

142405714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6473000.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 142405714 is about 11933.3865268833. The cubic root of 142405714 is about 522.2067388163.

Adding to 142405714 its reverse (417504241), we get a palindrome (559909955).

The spelling of 142405714 in words is "one hundred forty-two million, four hundred five thousand, seven hundred fourteen".

Divisors: 1 2 11 22 6472987 12945974 71202857 142405714