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30101030221 = 7915121111959
BaseRepresentation
bin11100000010001010…
…010100010101001101
32212200210101202210011
4130002022110111031
5443121330431341
621454521313221
72113634351413
oct340212242515
985623352704
1030101030221
1111847279589
125a00935811
132ab92a97b2
141657a272b3
15bb2933b81
hex70229454d

30101030221 has 16 divisors (see below), whose sum is σ = 30831923200. Its totient is φ = 29380806000.

The previous prime is 30101030207. The next prime is 30101030257. The reversal of 30101030221 is 12203010103.

It is a cyclic number.

It is not a de Polignac number, because 30101030221 - 217 = 30100899149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30101030261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2511040 + ... + 2522998.

It is an arithmetic number, because the mean of its divisors is an integer number (1926995200).

Almost surely, 230101030221 is an apocalyptic number.

It is an amenable number.

30101030221 is a deficient number, since it is larger than the sum of its proper divisors (730892979).

30101030221 is a wasteful number, since it uses less digits than its factorization.

30101030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12400.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30101030221 its reverse (12203010103), we get a palindrome (42304040324).

The spelling of 30101030221 in words is "thirty billion, one hundred one million, thirty thousand, two hundred twenty-one".

Divisors: 1 79 151 211 11929 11959 16669 31861 944761 1805809 2517019 2523349 142658911 199344571 381025699 30101030221