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30221213001 = 3724310744683
BaseRepresentation
bin11100001001010100…
…110001110101001001
32220000011112200120020
4130021110301311021
5443343112304001
621514453251053
72116624033500
oct341124616511
986004480506
1030221213001
11118a90a56a1
125a35033a89
132b08168975
14166998d837
15bbd273736
hex709531d49

30221213001 has 48 divisors (see below), whose sum is σ = 48413147904. Its totient is φ = 16709638176.

The previous prime is 30221212993. The next prime is 30221213023. The reversal of 30221213001 is 10031212203.

It is not a de Polignac number, because 30221213001 - 23 = 30221212993 is a prime.

It is a super-2 number, since 2×302212130012 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30221213801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 654006 + ... + 698688.

It is an arithmetic number, because the mean of its divisors is an integer number (1008607248).

Almost surely, 230221213001 is an apocalyptic number.

It is an amenable number.

30221213001 is a deficient number, since it is larger than the sum of its proper divisors (18191934903).

30221213001 is a wasteful number, since it uses less digits than its factorization.

30221213001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44850 (or 44843 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30221213001 its reverse (10031212203), we get a palindrome (40252425204).

The spelling of 30221213001 in words is "thirty billion, two hundred twenty-one million, two hundred thirteen thousand, one".

Divisors: 1 3 7 21 43 49 107 129 147 301 321 749 903 2107 2247 4601 5243 6321 13803 15729 32207 44683 96621 134049 225449 312781 676347 938343 1921369 2189467 4781081 5764107 6568401 13449583 14343243 33467567 40348749 94147081 100402701 205586483 234272969 282441243 616759449 702818907 1439105381 4317316143 10073737667 30221213001