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142214633 = 1171211863
BaseRepresentation
bin10000111101000…
…00010111101001
3100220121020210122
420132200113221
5242401332013
622040053025
73344542631
oct1036402751
9326536718
10142214633
1173304a60
123b764175
1323604392
1414c5d6c1
15c742a08
hex87a05e9

142214633 has 16 divisors (see below), whose sum is σ = 158257152. Its totient is φ = 126714000.

The previous prime is 142214623. The next prime is 142214641. The reversal of 142214633 is 336412241.

It is a cyclic number.

It is not a de Polignac number, because 142214633 - 28 = 142214377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142214623) 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 15 ways as a sum of consecutive naturals, for example, 164360 + ... + 165222.

It is an arithmetic number, because the mean of its divisors is an integer number (9891072).

Almost surely, 2142214633 is an apocalyptic number.

It is an amenable number.

142214633 is a deficient number, since it is larger than the sum of its proper divisors (16042519).

142214633 is a wasteful number, since it uses less digits than its factorization.

142214633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its digits is 3456, while the sum is 26.

The square root of 142214633 is about 11925.3776879393. The cubic root of 142214633 is about 521.9730673655.

Adding to 142214633 its reverse (336412241), we get a palindrome (478626874).

The spelling of 142214633 in words is "one hundred forty-two million, two hundred fourteen thousand, six hundred thirty-three".

Divisors: 1 11 71 211 781 863 2321 9493 14981 61273 164791 182093 674003 2003023 12928603 142214633