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142026415 = 5171670899
BaseRepresentation
bin10000111011100…
…10011010101111
3100220020200121121
420131302122233
5242324321130
622032041411
73343130116
oct1035623257
9326220547
10142026415
1173196603
123b693267
13235697cb
1414c10c7d
15c706d7a
hex87726af

142026415 has 8 divisors (see below), whose sum is σ = 180457200. Its totient is φ = 106937472.

The previous prime is 142026413. The next prime is 142026457. The reversal of 142026415 is 514620241.

It is a happy number.

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 142026415 - 21 = 142026413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142026415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142026413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835365 + ... + 835534.

It is an arithmetic number, because the mean of its divisors is an integer number (22557150).

Almost surely, 2142026415 is an apocalyptic number.

142026415 is a deficient number, since it is larger than the sum of its proper divisors (38430785).

142026415 is a wasteful number, since it uses less digits than its factorization.

142026415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670921.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 142026415 is about 11917.4835850527. The cubic root of 142026415 is about 521.7426923373.

Adding to 142026415 its reverse (514620241), we get a palindrome (656646656).

The spelling of 142026415 in words is "one hundred forty-two million, twenty-six thousand, four hundred fifteen".

Divisors: 1 5 17 85 1670899 8354495 28405283 142026415