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30211403420 = 22511212484051
BaseRepresentation
bin11100001000101111…
…010110111010011100
32212222111002022100102
4130020233112322130
5443333104402140
621513503120232
72116444456232
oct341057267234
985874068312
1030211403420
11118a3605600
125a318a3078
132b06112993
141668558952
15bbc486e15
hex708bd6e9c

30211403420 has 36 divisors (see below), whose sum is σ = 69735914472. Its totient is φ = 10985964000.

The previous prime is 30211403413. The next prime is 30211403437. The reversal of 30211403420 is 2430411203.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30211403392 and 30211403401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6239606 + ... + 6244445.

Almost surely, 230211403420 is an apocalyptic number.

It is an amenable number.

30211403420 is an abundant number, since it is smaller than the sum of its proper divisors (39524511052).

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

30211403420 is a wasteful number, since it uses less digits than its factorization.

30211403420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12484082 (or 12484069 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 30211403420 its reverse (2430411203), we get a palindrome (32641814623).

The spelling of 30211403420 in words is "thirty billion, two hundred eleven million, four hundred three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 1210 2420 12484051 24968102 49936204 62420255 124840510 137324561 249681020 274649122 549298244 686622805 1373245610 1510570171 2746491220 3021140342 6042280684 7552850855 15105701710 30211403420