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142797284 = 22731164513
BaseRepresentation
bin10001000001011…
…10100111100100
3100221200212001022
420200232213210
5243024003114
622100350312
73352520420
oct1040564744
9327625038
10142797284
1173672793
123b9a5398
1323779646
1414d71b80
15c80a48e
hex882e9e4

142797284 has 24 divisors (see below), whose sum is σ = 294809088. Its totient is φ = 59224320.

The previous prime is 142797269. The next prime is 142797299. The reversal of 142797284 is 482797241.

It is an interprime number because it is at equal distance from previous prime (142797269) and next prime (142797299).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81389 + ... + 83124.

It is an arithmetic number, because the mean of its divisors is an integer number (12283712).

Almost surely, 2142797284 is an apocalyptic number.

142797284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142797284 is an abundant number, since it is smaller than the sum of its proper divisors (152011804).

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

142797284 is a wasteful number, since it uses less digits than its factorization.

142797284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164555 (or 164553 counting only the distinct ones).

The product of its digits is 225792, while the sum is 44.

The square root of 142797284 is about 11949.7817553293. The cubic root of 142797284 is about 522.6849344218.

The spelling of 142797284 in words is "one hundred forty-two million, seven hundred ninety-seven thousand, two hundred eighty-four".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 164513 329026 658052 1151591 2303182 4606364 5099903 10199806 20399612 35699321 71398642 142797284