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142508156 = 22719126647
BaseRepresentation
bin10000111111010…
…00000001111100
3100221011011102212
420133220001330
5242440230111
622050235552
73350204450
oct1037500174
9327134385
10142508156
117349553a
123b885bb8
13236a7b6b
1414cd8660
15c79e98b
hex87e807c

142508156 has 24 divisors (see below), whose sum is σ = 286519296. Its totient is φ = 60752880.

The previous prime is 142508131. The next prime is 142508167. The reversal of 142508156 is 651805241.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7976 + ... + 18671.

It is an arithmetic number, because the mean of its divisors is an integer number (11938304).

Almost surely, 2142508156 is an apocalyptic number.

It is an amenable number.

142508156 is an abundant number, since it is smaller than the sum of its proper divisors (144011140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142508156 is a wasteful number, since it uses less digits than its factorization.

142508156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26849 (or 26847 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 142508156 is about 11937.6779986729. The cubic root of 142508156 is about 522.3319282688.

The spelling of 142508156 in words is "one hundred forty-two million, five hundred eight thousand, one hundred fifty-six".

Divisors: 1 2 4 7 14 28 191 382 764 1337 2674 5348 26647 53294 106588 186529 373058 746116 5089577 10179154 20358308 35627039 71254078 142508156