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30231131026 = 229521226397
BaseRepresentation
bin11100001001111010…
…100111001110010010
32220000212012120112111
4130021322213032102
5443403132143101
621515450015534
72120104242145
oct341172471622
986025176474
1030231131026
111190375a208
125a384175aa
132b0a22c115
14166b01205c
15bbe082251
hex709ea7392

30231131026 has 8 divisors (see below), whose sum is σ = 46910375820. Its totient is φ = 14594339088.

The previous prime is 30231130987. The next prime is 30231131039. The reversal of 30231131026 is 62013113203.

It can be written as a sum of positive squares in 2 ways, for example, as 26779686025 + 3451445001 = 163645^2 + 58749^2 .

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

It is a super-2 number, since 2×302311310262 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30231130988 and 30231131006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260613141 + ... + 260613256.

Almost surely, 230231131026 is an apocalyptic number.

30231131026 is a deficient number, since it is larger than the sum of its proper divisors (16679244794).

30231131026 is a wasteful number, since it uses less digits than its factorization.

30231131026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521226428.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 30231131026 its reverse (62013113203), we get a palindrome (92244244229).

The spelling of 30231131026 in words is "thirty billion, two hundred thirty-one million, one hundred thirty-one thousand, twenty-six".

Divisors: 1 2 29 58 521226397 1042452794 15115565513 30231131026