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142593228 = 223222717449
BaseRepresentation
bin10000111111111…
…00110011001100
3100221022111010200
420133330303030
5243000440403
622052133500
73351010461
oct1037746314
9327274120
10142593228
1173543448
123b907290
13237077bb
1414d1b668
15c7b9ca3
hex87fcccc

142593228 has 36 divisors (see below), whose sum is σ = 362052600. Its totient is φ = 47318976.

The previous prime is 142593197. The next prime is 142593277. The reversal of 142593228 is 822395241.

It is a happy number.

142593228 is a `hidden beast` number, since 1 + 42 + 593 + 2 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 142593192 and 142593201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 553 + ... + 16896.

Almost surely, 2142593228 is an apocalyptic number.

142593228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142593228 is an abundant number, since it is smaller than the sum of its proper divisors (219459372).

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

142593228 is a wasteful number, since it uses less digits than its factorization.

142593228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17686 (or 17681 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 142593228 is about 11941.2406390626. The cubic root of 142593228 is about 522.4358450874.

The spelling of 142593228 in words is "one hundred forty-two million, five hundred ninety-three thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 227 454 681 908 1362 2043 2724 4086 8172 17449 34898 52347 69796 104694 157041 209388 314082 628164 3960923 7921846 11882769 15843692 23765538 35648307 47531076 71296614 142593228