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213201530 = 25179119107
BaseRepresentation
bin11001011010100…
…11001001111010
3112212011202111222
430231103021322
5414034422110
633053352042
75166116543
oct1455231172
9485152458
10213201530
11aa38a513
125b498622
133522a169
142045b4ca
1513ab5c55
hexcb5327a

213201530 has 16 divisors (see below), whose sum is σ = 385909920. Its totient is φ = 84803472.

The previous prime is 213201509. The next prime is 213201553. The reversal of 213201530 is 35102312.

It is a junction number, because it is equal to n+sod(n) for n = 213201499 and 213201508.

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, 57764 + ... + 61343.

It is an arithmetic number, because the mean of its divisors is an integer number (24119370).

Almost surely, 2213201530 is an apocalyptic number.

213201530 is a deficient number, since it is larger than the sum of its proper divisors (172708390).

213201530 is a wasteful number, since it uses less digits than its factorization.

213201530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119293.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 213201530 is about 14601.4221910059. The cubic root of 213201530 is about 597.3975525059.

Adding to 213201530 its reverse (35102312), we get a palindrome (248303842).

The spelling of 213201530 in words is "two hundred thirteen million, two hundred one thousand, five hundred thirty".

Divisors: 1 2 5 10 179 358 895 1790 119107 238214 595535 1191070 21320153 42640306 106600765 213201530