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30211400212 = 2273113194867
BaseRepresentation
bin11100001000101111…
…010110001000010100
32212222111002010221121
4130020233112020110
5443333104301322
621513503053324
72116444444000
oct341057261024
985874063847
1030211400212
11118a3603154
125a318a1244
132b06111396
141668557700
15bbc485ec7
hex708bd6214

30211400212 has 48 divisors (see below), whose sum is σ = 62201865600. Its totient is φ = 12833095296.

The previous prime is 30211400201. The next prime is 30211400221. The reversal of 30211400212 is 21200411203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57603 + ... + 252469.

It is an arithmetic number, because the mean of its divisors is an integer number (1295872200).

Almost surely, 230211400212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30211400212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31100932800).

30211400212 is an abundant number, since it is smaller than the sum of its proper divisors (31990465388).

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

30211400212 is a wasteful number, since it uses less digits than its factorization.

30211400212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195005 (or 194989 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 30211400212 its reverse (21200411203), we get a palindrome (51411811415).

The spelling of 30211400212 in words is "thirty billion, two hundred eleven million, four hundred thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 49 98 113 196 226 343 452 686 791 1372 1582 3164 5537 11074 22148 38759 77518 155036 194867 389734 779468 1364069 2728138 5456276 9548483 19096966 22019971 38193932 44039942 66839381 88079884 133678762 154139797 267357524 308279594 616559188 1078978579 2157957158 4315914316 7552850053 15105700106 30211400212