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30002210121 = 313769287439
BaseRepresentation
bin11011111100010001…
…010110010101001001
32212102220110012002110
4123330101112111021
5442421031210441
621441031252533
72111324402232
oct337421262511
985386405073
1030002210121
11117a6513584
12599381a149
132aa198a070
141648862089
15ba8e13b16
hex6fc456549

30002210121 has 8 divisors (see below), whose sum is σ = 43080096640. Its totient is φ = 18462898512.

The previous prime is 30002210087. The next prime is 30002210141. The reversal of 30002210121 is 12101220003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30002210121 - 29 = 30002209609 is a prime.

It is a super-2 number, since 2×300022101212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30002210097 and 30002210106.

It is not an unprimeable number, because it can be changed into a prime (30002210141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384643681 + ... + 384643758.

It is an arithmetic number, because the mean of its divisors is an integer number (5385012080).

Almost surely, 230002210121 is an apocalyptic number.

It is an amenable number.

30002210121 is a deficient number, since it is larger than the sum of its proper divisors (13077886519).

30002210121 is a wasteful number, since it uses less digits than its factorization.

30002210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769287455.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30002210121 its reverse (12101220003), we get a palindrome (42103430124).

The spelling of 30002210121 in words is "thirty billion, two million, two hundred ten thousand, one hundred twenty-one".

Divisors: 1 3 13 39 769287439 2307862317 10000736707 30002210121