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142862984 = 23115330631
BaseRepresentation
bin10001000001111…
…10101010001000
3100221211012011122
420200332222020
5243033103414
622102014412
73353213105
oct1040765210
9327735148
10142862984
1173708090
123ba17408
13237a0514
1414d8baac
15c81eb8e
hex883ea88

142862984 has 32 divisors (see below), whose sum is σ = 297743040. Its totient is φ = 63710400.

The previous prime is 142862981. The next prime is 142862987. The reversal of 142862984 is 489268241.

It is an interprime number because it is at equal distance from previous prime (142862981) and next prime (142862987).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (142862981) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10652 + ... + 19979.

It is an arithmetic number, because the mean of its divisors is an integer number (9304470).

Almost surely, 2142862984 is an apocalyptic number.

It is an amenable number.

142862984 is an abundant number, since it is smaller than the sum of its proper divisors (154880056).

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

142862984 is a wasteful number, since it uses less digits than its factorization.

142862984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30701 (or 30697 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 142862984 is about 11952.5304433831. The cubic root of 142862984 is about 522.7650833201.

The spelling of 142862984 in words is "one hundred forty-two million, eight hundred sixty-two thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 11 22 44 53 88 106 212 424 583 1166 2332 4664 30631 61262 122524 245048 336941 673882 1347764 1623443 2695528 3246886 6493772 12987544 17857873 35715746 71431492 142862984