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142863232 = 271935783
BaseRepresentation
bin10001000001111…
…10101110000000
3100221211012111211
420200332232000
5243033110412
622102015504
73353213611
oct1040765600
9327735454
10142863232
1173708296
123ba17594
13237a0675
1414d8bc08
15c81eca7
hex883eb80

142863232 has 32 divisors (see below), whose sum is σ = 286134480. Its totient is φ = 71049216.

The previous prime is 142863209. The next prime is 142863293. The reversal of 142863232 is 232368241.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 142863194 and 142863203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21813 + ... + 27595.

Almost surely, 2142863232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142863232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143067240).

142863232 is an abundant number, since it is smaller than the sum of its proper divisors (143271248).

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

142863232 is an equidigital number, since it uses as much as digits as its factorization.

142863232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5990 (or 5978 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 142863232 is about 11952.5408177508. The cubic root of 142863232 is about 522.7653858143.

The spelling of 142863232 in words is "one hundred forty-two million, eight hundred sixty-three thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 128 193 386 772 1544 3088 5783 6176 11566 12352 23132 24704 46264 92528 185056 370112 740224 1116119 2232238 4464476 8928952 17857904 35715808 71431616 142863232