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180630030 = 2357860143
BaseRepresentation
bin10101100010000…
…11001000001110
3110120212221211010
422301003020032
5332220130110
625531310050
74322221110
oct1261031016
9416787733
10180630030
1192a63019
12505ab326
132b564899
1419dbd3b0
1510cd0020
hexac4320e

180630030 has 32 divisors (see below), whose sum is σ = 495442944. Its totient is φ = 41286816.

The previous prime is 180630013. The next prime is 180630053. The reversal of 180630030 is 30036081.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 180629979 and 180630006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429862 + ... + 430281.

It is an arithmetic number, because the mean of its divisors is an integer number (15482592).

Almost surely, 2180630030 is an apocalyptic number.

180630030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180630030 is an abundant number, since it is smaller than the sum of its proper divisors (314812914).

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

180630030 is a wasteful number, since it uses less digits than its factorization.

180630030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860160.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 180630030 is about 13439.8671868438. The cubic root of 180630030 is about 565.2796068218.

The spelling of 180630030 in words is "one hundred eighty million, six hundred thirty thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 860143 1720286 2580429 4300715 5160858 6021001 8601430 12042002 12902145 18063003 25804290 30105005 36126006 60210010 90315015 180630030