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142260505 = 51719591493
BaseRepresentation
bin10000111101010…
…11100100011001
3100220200120201121
420132223210121
5242404314010
622041045241
73345123442
oct1036534431
9326616647
10142260505
1173336472
123b786821
132361c21a
1414c722c9
15c7513da
hex87ab919

142260505 has 32 divisors (see below), whose sum is σ = 193622400. Its totient is φ = 99689472.

The previous prime is 142260463. The next prime is 142260511. The reversal of 142260505 is 505062241.

142260505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 142260505 - 215 = 142227737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142260505.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94539 + ... + 96031.

It is an arithmetic number, because the mean of its divisors is an integer number (6050700).

Almost surely, 2142260505 is an apocalyptic number.

It is an amenable number.

142260505 is a deficient number, since it is larger than the sum of its proper divisors (51361895).

142260505 is a wasteful number, since it uses less digits than its factorization.

142260505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 142260505 is about 11927.3008262557. The cubic root of 142260505 is about 522.0291829567.

The spelling of 142260505 in words is "one hundred forty-two million, two hundred sixty thousand, five hundred five".

Divisors: 1 5 17 19 59 85 95 295 323 1003 1121 1493 1615 5015 5605 7465 19057 25381 28367 88087 95285 126905 141835 440435 482239 1497479 1673653 2411195 7487395 8368265 28452101 142260505