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30161300 = 22521323201
BaseRepresentation
bin111001100001…
…1100110010100
32002202100112012
41303003212110
530210130200
62554243352
7514236551
oct163034624
962670465
1030161300
11160306a4
12a126558
136330530
144011a28
1529aba35
hex1cc3994

30161300 has 36 divisors (see below), whose sum is σ = 70487676. Its totient is φ = 11136000.

The previous prime is 30161279. The next prime is 30161333. The reversal of 30161300 is 316103.

It can be written as a sum of positive squares in 6 ways, for example, as 174724 + 29986576 = 418^2 + 5476^2 .

It is a congruent number.

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, 10301 + ... + 12900.

It is an arithmetic number, because the mean of its divisors is an integer number (1957991).

Almost surely, 230161300 is an apocalyptic number.

It is an amenable number.

30161300 is an abundant number, since it is smaller than the sum of its proper divisors (40326376).

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

30161300 is a wasteful number, since it uses less digits than its factorization.

30161300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23228 (or 23221 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 30161300 is about 5491.9304438421. The cubic root of 30161300 is about 311.2791406188.

Adding to 30161300 its reverse (316103), we get a palindrome (30477403).

The spelling of 30161300 in words is "thirty million, one hundred sixty-one thousand, three hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 650 1300 23201 46402 92804 116005 232010 301613 464020 580025 603226 1160050 1206452 1508065 2320100 3016130 6032260 7540325 15080650 30161300