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142305255 = 3452315277
BaseRepresentation
bin10000111101101…
…10011111100111
3100220202212010000
420132312133213
5242412232010
622042032343
73345401061
oct1036663747
9326685100
10142305255
1173367054
123b7a86b3
13236366c1
1414c84731
15c75e7c0
hex87b67e7

142305255 has 40 divisors (see below), whose sum is σ = 266203872. Its totient is φ = 72591552.

The previous prime is 142305223. The next prime is 142305299. The reversal of 142305255 is 552503241.

It is a happy number.

It is not a de Polignac number, because 142305255 - 25 = 142305223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1677 + ... + 16953.

Almost surely, 2142305255 is an apocalyptic number.

142305255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142305255 is a deficient number, since it is larger than the sum of its proper divisors (123898617).

142305255 is a wasteful number, since it uses less digits than its factorization.

142305255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15317 (or 15308 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 142305255 is about 11929.1766270770. The cubic root of 142305255 is about 522.0839143732.

Adding to 142305255 its reverse (552503241), we get a palindrome (694808496).

The spelling of 142305255 in words is "one hundred forty-two million, three hundred five thousand, two hundred fifty-five".

Divisors: 1 3 5 9 15 23 27 45 69 81 115 135 207 345 405 621 1035 1863 3105 9315 15277 45831 76385 137493 229155 351371 412479 687465 1054113 1237437 1756855 2062395 3162339 5270565 6187185 9487017 15811695 28461051 47435085 142305255