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142905324 = 22311908777
BaseRepresentation
bin10001000010010…
…00111111101100
3100221220100020210
420201020333230
5243040432244
622102542420
73353450412
oct1041107754
9327810223
10142905324
1173736981
123ba37a10
13237b6883
1414d9d2b2
15c82c4b9
hex8848fec

142905324 has 12 divisors (see below), whose sum is σ = 333445784. Its totient is φ = 47635104.

The previous prime is 142905317. The next prime is 142905341. The reversal of 142905324 is 423509241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 142905291 and 142905300.

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 3 ways as a sum of consecutive naturals, for example, 5954377 + ... + 5954400.

Almost surely, 2142905324 is an apocalyptic number.

It is an amenable number.

142905324 is an abundant number, since it is smaller than the sum of its proper divisors (190540460).

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

142905324 is a wasteful number, since it uses less digits than its factorization.

142905324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11908784 (or 11908782 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 142905324 is about 11954.3014852395. The cubic root of 142905324 is about 522.8167218126.

The spelling of 142905324 in words is "one hundred forty-two million, nine hundred five thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 12 11908777 23817554 35726331 47635108 71452662 142905324