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142226413 = 7431373449
BaseRepresentation
bin10000111101000…
…11001111101101
3100220121211221221
420132203033231
5242402221123
622040223341
73344622160
oct1036431755
9326554857
10142226413
117331289a
123b76ab51
1323609854
1414c63ad7
15c74625d
hex87a33ed

142226413 has 16 divisors (see below), whose sum is σ = 167587200. Its totient is φ = 118169856.

The previous prime is 142226323. The next prime is 142226423. The reversal of 142226413 is 314622241.

It is a happy number.

It is not a de Polignac number, because 142226413 - 213 = 142218221 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 (142226423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39513 + ... + 42961.

It is an arithmetic number, because the mean of its divisors is an integer number (10474200).

Almost surely, 2142226413 is an apocalyptic number.

It is an amenable number.

142226413 is a deficient number, since it is larger than the sum of its proper divisors (25360787).

142226413 is a wasteful number, since it uses less digits than its factorization.

142226413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3636.

The product of its digits is 2304, while the sum is 25.

The square root of 142226413 is about 11925.8715824044. The cubic root of 142226413 is about 521.9874790868.

Adding to 142226413 its reverse (314622241), we get a palindrome (456848654).

The spelling of 142226413 in words is "one hundred forty-two million, two hundred twenty-six thousand, four hundred thirteen".

Divisors: 1 7 43 137 301 959 3449 5891 24143 41237 148307 472513 1038149 3307591 20318059 142226413