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30221110031 = 738237112909
BaseRepresentation
bin11100001001010100…
…011000101100001111
32220000011100110022112
4130021110120230033
5443343101010111
621514451134235
72116623124340
oct341124305417
986004313275
1030221110031
11118a90352a2
125a34ba437b
132b08130b38
1416699640c7
15bbd252e8b
hex709518b0f

30221110031 has 8 divisors (see below), whose sum is σ = 34539620640. Its totient is φ = 25902901728.

The previous prime is 30221110021. The next prime is 30221110033. The reversal of 30221110031 is 13001112203.

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

It is a cyclic number.

It is not a de Polignac number, because 30221110031 - 210 = 30221109007 is a prime.

It is a super-2 number, since 2×302211100312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30221109988 and 30221110015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221110033) 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, 211205 + ... + 324113.

It is an arithmetic number, because the mean of its divisors is an integer number (4317452580).

Almost surely, 230221110031 is an apocalyptic number.

30221110031 is a deficient number, since it is larger than the sum of its proper divisors (4318510609).

30221110031 is a wasteful number, since it uses less digits than its factorization.

30221110031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151153.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30221110031 its reverse (13001112203), we get a palindrome (43222222234).

The spelling of 30221110031 in words is "thirty billion, two hundred twenty-one million, one hundred ten thousand, thirty-one".

Divisors: 1 7 38237 112909 267659 790363 4317301433 30221110031