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213010030 = 25163130681
BaseRepresentation
bin11001011001001…
…00011001101110
3112211211000211101
430230210121232
5414012310110
633045313314
75164361332
oct1454443156
9484730741
10213010030
11aa269652
125b40583a
1335190c4c
142040b7c2
1513a7913a
hexcb2466e

213010030 has 16 divisors (see below), whose sum is σ = 385773264. Its totient is φ = 84680640.

The previous prime is 213010013. The next prime is 213010037. The reversal of 213010030 is 30010312.

213010030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 213009989 and 213010016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213010037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63711 + ... + 66970.

It is an arithmetic number, because the mean of its divisors is an integer number (24110829).

Almost surely, 2213010030 is an apocalyptic number.

213010030 is a deficient number, since it is larger than the sum of its proper divisors (172763234).

213010030 is a wasteful number, since it uses less digits than its factorization.

213010030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130851.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 213010030 is about 14594.8631374193. The cubic root of 213010030 is about 597.2186358713.

Adding to 213010030 its reverse (30010312), we get a palindrome (243020342).

The spelling of 213010030 in words is "two hundred thirteen million, ten thousand, thirty".

Divisors: 1 2 5 10 163 326 815 1630 130681 261362 653405 1306810 21301003 42602006 106505015 213010030