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213123002 = 2415994339
BaseRepresentation
bin11001011001111…
…11111110111010
3112212000202210112
430230333332322
5414024414002
633051544322
75165341601
oct1454777672
9485022715
10213123002
11aa336514
125b45b0a2
13352004b1
142043aa38
1513a9c852
hexcb3ffba

213123002 has 16 divisors (see below), whose sum is σ = 328104000. Its totient is φ = 103764960.

The previous prime is 213122971. The next prime is 213123041. The reversal of 213123002 is 200321312.

It is a happy number.

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, 46949 + ... + 51287.

It is an arithmetic number, because the mean of its divisors is an integer number (20506500).

Almost surely, 2213123002 is an apocalyptic number.

213123002 is a deficient number, since it is larger than the sum of its proper divisors (114980998).

213123002 is a wasteful number, since it uses less digits than its factorization.

213123002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4981.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 213123002 is about 14598.7328902203. The cubic root of 213123002 is about 597.3241975040.

Adding to 213123002 its reverse (200321312), we get a palindrome (413444314).

The spelling of 213123002 in words is "two hundred thirteen million, one hundred twenty-three thousand, two".

Divisors: 1 2 41 82 599 1198 4339 8678 24559 49118 177899 355798 2599061 5198122 106561501 213123002