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30101121213 = 3172983245209
BaseRepresentation
bin11100000010001010…
…101010100010111101
32212200210120101121020
4130002022222202331
5443121341334323
621454523254353
72113635210612
oct340212524275
985623511536
1030101121213
1111847330989
125a0097a3b9
132ab930c037
141657a4c509
15bb2950ae3
hex7022aa8bd

30101121213 has 32 divisors (see below), whose sum is σ = 44490902400. Its totient is φ = 18015922176.

The previous prime is 30101121173. The next prime is 30101121227. The reversal of 30101121213 is 31212110103.

It is a happy number.

It is not a de Polignac number, because 30101121213 - 29 = 30101120701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30101121192 and 30101121201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30101121263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153 + ... + 245361.

It is an arithmetic number, because the mean of its divisors is an integer number (1390340700).

Almost surely, 230101121213 is an apocalyptic number.

It is an amenable number.

30101121213 is a deficient number, since it is larger than the sum of its proper divisors (14389781187).

30101121213 is a wasteful number, since it uses less digits than its factorization.

30101121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245341.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 30101121213 its reverse (31212110103), we get a palindrome (61313231316).

The spelling of 30101121213 in words is "thirty billion, one hundred one million, one hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 3 17 29 51 83 87 249 493 1411 1479 2407 4233 7221 40919 122757 245209 735627 4168553 7111061 12505659 20352347 21333183 61057041 120888037 345989899 362664111 590218063 1037969697 1770654189 10033707071 30101121213