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230654180 = 22589129581
BaseRepresentation
bin11011011111110…
…00000011100100
3121002000110001102
431233320003210
5433021413210
634515415232
75500346111
oct1557700344
9532013042
10230654180
1110921a999
12652b4518
1338a2ac83
14228c1908
15153b1ea5
hexdbf80e4

230654180 has 24 divisors (see below), whose sum is σ = 489819960. Its totient is φ = 91224320.

The previous prime is 230654173. The next prime is 230654219. The reversal of 230654180 is 81456032.

It can be written as a sum of positive squares in 4 ways, for example, as 10903204 + 219750976 = 3302^2 + 14824^2 .

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, 63011 + ... + 66570.

It is an arithmetic number, because the mean of its divisors is an integer number (20409165).

Almost surely, 2230654180 is an apocalyptic number.

230654180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230654180 is an abundant number, since it is smaller than the sum of its proper divisors (259165780).

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

230654180 is a wasteful number, since it uses less digits than its factorization.

230654180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129679 (or 129677 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 230654180 is about 15187.3032497544. The cubic root of 230654180 is about 613.2729034928.

The spelling of 230654180 in words is "two hundred thirty million, six hundred fifty-four thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 129581 259162 518324 647905 1295810 2591620 11532709 23065418 46130836 57663545 115327090 230654180