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213130030 = 25191121737
BaseRepresentation
bin11001011010000…
…01101100101110
3112212001010102211
430231001230232
5414030130110
633052041034
75165401231
oct1455015456
9485033384
10213130030
11aa340823
125b46317a
1335203759
142043d418
1513a9e98a
hexcb41b2e

213130030 has 16 divisors (see below), whose sum is σ = 403825680. Its totient is φ = 80764992.

The previous prime is 213129979. The next prime is 213130031. The reversal of 213130030 is 30031312.

Adding to 213130030 its reverse (30031312), we get a palindrome (243161342).

213130030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213130031) 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, 560679 + ... + 561058.

It is an arithmetic number, because the mean of its divisors is an integer number (25239105).

Almost surely, 2213130030 is an apocalyptic number.

213130030 is a deficient number, since it is larger than the sum of its proper divisors (190695650).

213130030 is a wasteful number, since it uses less digits than its factorization.

213130030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121763.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 213130030 is about 14598.9735940579. The cubic root of 213130030 is about 597.3307632716.

The spelling of 213130030 in words is "two hundred thirteen million, one hundred thirty thousand, thirty".

Divisors: 1 2 5 10 19 38 95 190 1121737 2243474 5608685 11217370 21313003 42626006 106565015 213130030