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30213231200 = 255237766539
BaseRepresentation
bin11100001000110110…
…010101001001100000
32212222121112011120222
4130020312111021200
5443334041344300
621514010222212
72116466141105
oct341066251140
985877464528
1030213231200
11118a4643869
125a32424968
132b066028c9
1416688b2aac
15bbc6e8785
hex708d95260

30213231200 has 36 divisors (see below), whose sum is σ = 73758052620. Its totient is φ = 12085292160.

The previous prime is 30213231199. The next prime is 30213231221. The reversal of 30213231200 is 213231203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18882470 + ... + 18884069.

It is an arithmetic number, because the mean of its divisors is an integer number (2048834795).

Almost surely, 230213231200 is an apocalyptic number.

It is an amenable number.

30213231200 is an abundant number, since it is smaller than the sum of its proper divisors (43544821420).

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

30213231200 is a wasteful number, since it uses less digits than its factorization.

30213231200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37766559 (or 37766546 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30213231200 its reverse (213231203), we get a palindrome (30426462403).

The spelling of 30213231200 in words is "thirty billion, two hundred thirteen million, two hundred thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 37766539 75533078 151066156 188832695 302132312 377665390 604264624 755330780 944163475 1208529248 1510661560 1888326950 3021323120 3776653900 6042646240 7553307800 15106615600 30213231200