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30103023211 = 81137118401
BaseRepresentation
bin11100000010010001…
…111010111001101011
32212200221011000122121
4130002101322321223
5443122333220321
621455032132111
72113660322032
oct340221727153
985627130577
1030103023211
111184840a988
125a01537037
132ab9826991
141657dc5719
15bb2bc9441
hex70247ae6b

30103023211 has 4 divisors (see below), whose sum is σ = 30140142424. Its totient is φ = 30065904000.

The previous prime is 30103023143. The next prime is 30103023221. The reversal of 30103023211 is 11232030103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11232030103 = 71604575729.

It is a cyclic number.

It is not a de Polignac number, because 30103023211 - 29 = 30103022699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30103023221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18558390 + ... + 18560011.

It is an arithmetic number, because the mean of its divisors is an integer number (7535035606).

Almost surely, 230103023211 is an apocalyptic number.

30103023211 is a deficient number, since it is larger than the sum of its proper divisors (37119213).

30103023211 is an equidigital number, since it uses as much as digits as its factorization.

30103023211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37119212.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30103023211 its reverse (11232030103), we get a palindrome (41335053314).

The spelling of 30103023211 in words is "thirty billion, one hundred three million, twenty-three thousand, two hundred eleven".

Divisors: 1 811 37118401 30103023211