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30211030 = 258593517
BaseRepresentation
bin111001100111…
…1101111010110
32002211212202001
41303033233112
530213223110
62555305514
7514534543
oct163175726
962755661
1030211030
1116064aa3
12a14b29a
13634a065
144025bca
1529bb63a
hex1ccfbd6

30211030 has 16 divisors (see below), whose sum is σ = 54458640. Its totient is φ = 12066912.

The previous prime is 30211001. The next prime is 30211031. The reversal of 30211030 is 3011203.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 30210998 and 30211016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6832 + ... + 10348.

It is an arithmetic number, because the mean of its divisors is an integer number (3403665).

Almost surely, 230211030 is an apocalyptic number.

30211030 is a deficient number, since it is larger than the sum of its proper divisors (24247610).

30211030 is a wasteful number, since it uses less digits than its factorization.

30211030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 30211030 is about 5496.4561309993. The cubic root of 30211030 is about 311.4501258624.

Adding to 30211030 its reverse (3011203), we get a palindrome (33222233).

The spelling of 30211030 in words is "thirty million, two hundred eleven thousand, thirty".

Divisors: 1 2 5 10 859 1718 3517 4295 7034 8590 17585 35170 3021103 6042206 15105515 30211030