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142868548 = 22231552919
BaseRepresentation
bin10001000010000…
…00000001000100
3100221211110210201
420201000001010
5243033243143
622102100244
73353235244
oct1041000104
9327743721
10142868548
1173711289
123ba1a684
13237a2c04
1414d8db24
15c82164d
hex8840044

142868548 has 12 divisors (see below), whose sum is σ = 260890560. Its totient is φ = 68328392.

The previous prime is 142868533. The next prime is 142868563. The reversal of 142868548 is 845868241.

It is an interprime number because it is at equal distance from previous prime (142868533) and next prime (142868563).

It is a super-2 number, since 2×1428685482 = 40822844015256608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 142868498 and 142868507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776368 + ... + 776551.

It is an arithmetic number, because the mean of its divisors is an integer number (21740880).

Almost surely, 2142868548 is an apocalyptic number.

It is an amenable number.

142868548 is a deficient number, since it is larger than the sum of its proper divisors (118022012).

142868548 is a wasteful number, since it uses less digits than its factorization.

142868548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552946 (or 1552944 counting only the distinct ones).

The product of its digits is 491520, while the sum is 46.

The square root of 142868548 is about 11952.7631951779. The cubic root of 142868548 is about 522.7718698393.

The spelling of 142868548 in words is "one hundred forty-two million, eight hundred sixty-eight thousand, five hundred forty-eight".

Divisors: 1 2 4 23 46 92 1552919 3105838 6211676 35717137 71434274 142868548