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182130728 = 23135713067
BaseRepresentation
bin10101101101100…
…01100000101000
3110200201012101112
422312301200220
5333111140403
630023405452
74341041243
oct1266614050
9420635345
10182130728
119389856a
1250bb3888
132b96b980
141a29025a
1510ec99d8
hexadb1828

182130728 has 32 divisors (see below), whose sum is σ = 368528160. Its totient is φ = 83885760.

The previous prime is 182130719. The next prime is 182130749. The reversal of 182130728 is 827031281.

It is a junction number, because it is equal to n+sod(n) for n = 182130694 and 182130703.

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, 57851 + ... + 60917.

It is an arithmetic number, because the mean of its divisors is an integer number (11516505).

Almost surely, 2182130728 is an apocalyptic number.

It is an amenable number.

182130728 is an abundant number, since it is smaller than the sum of its proper divisors (186397432).

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

182130728 is a wasteful number, since it uses less digits than its factorization.

182130728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657 (or 3653 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 182130728 is about 13495.5817955359. The cubic root of 182130728 is about 566.8407637308.

The spelling of 182130728 in words is "one hundred eighty-two million, one hundred thirty thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 13 26 52 104 571 1142 2284 3067 4568 6134 7423 12268 14846 24536 29692 39871 59384 79742 159484 318968 1751257 3502514 7005028 14010056 22766341 45532682 91065364 182130728