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142943528 = 23713238537
BaseRepresentation
bin10001000010100…
…10010100101000
3100221222021122202
420201102110220
5243043143103
622103435332
73353666660
oct1041222450
9327867582
10142943528
1173762652
123ba55b48
13237cb090
1414dad1a0
15c838988
hex8852528

142943528 has 64 divisors (see below), whose sum is σ = 344252160. Its totient is φ = 54084096.

The previous prime is 142943509. The next prime is 142943533. The reversal of 142943528 is 825349241.

It is a junction number, because it is equal to n+sod(n) for n = 142943491 and 142943500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12476 + ... + 21012.

It is an arithmetic number, because the mean of its divisors is an integer number (5378940).

Almost surely, 2142943528 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 142943528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172126080).

142943528 is an abundant number, since it is smaller than the sum of its proper divisors (201308632).

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

142943528 is a wasteful number, since it uses less digits than its factorization.

142943528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8586 (or 8582 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 142943528 is about 11955.8992969998. The cubic root of 142943528 is about 522.8633072251.

The spelling of 142943528 in words is "one hundred forty-two million, nine hundred forty-three thousand, five hundred twenty-eight".

Divisors: 1 2 4 7 8 13 14 23 26 28 46 52 56 91 92 104 161 182 184 299 322 364 598 644 728 1196 1288 2093 2392 4186 8372 8537 16744 17074 34148 59759 68296 110981 119518 196351 221962 239036 392702 443924 478072 776867 785404 887848 1374457 1553734 1570808 2552563 2748914 3107468 5105126 5497828 6214936 10210252 10995656 17867941 20420504 35735882 71471764 142943528