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142216007 = 1943174071
BaseRepresentation
bin10000111101000…
…00101101000111
3100220121022200112
420132200231013
5242401403012
622040103235
73344546633
oct1036405507
9326538615
10142216007
1173305a9a
123b764b1b
1323604bab
1414c5ddc3
15c743122
hex87a0b47

142216007 has 8 divisors (see below), whose sum is σ = 153183360. Its totient is φ = 131596920.

The previous prime is 142215991. The next prime is 142216021. The reversal of 142216007 is 700612241.

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 142216007 - 24 = 142215991 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 (142216057) 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 7 ways as a sum of consecutive naturals, for example, 86219 + ... + 87852.

It is an arithmetic number, because the mean of its divisors is an integer number (19147920).

Almost surely, 2142216007 is an apocalyptic number.

142216007 is a deficient number, since it is larger than the sum of its proper divisors (10967353).

142216007 is a wasteful number, since it uses less digits than its factorization.

142216007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174133.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 142216007 is about 11925.4352960385. The cubic root of 142216007 is about 521.9747483662.

Adding to 142216007 its reverse (700612241), we get a palindrome (842828248).

The spelling of 142216007 in words is "one hundred forty-two million, two hundred sixteen thousand, seven".

Divisors: 1 19 43 817 174071 3307349 7485053 142216007