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231325022 = 21031122937
BaseRepresentation
bin11011100100110…
…11110101011110
3121010021112021102
431302123311132
5433204400042
634542033102
75506141655
oct1562336536
9533245242
10231325022
11109638a05
1265578792
1338c04416
1422a1819c
1515495b32
hexdc9bd5e

231325022 has 8 divisors (see below), whose sum is σ = 350356656. Its totient is φ = 114539472.

The previous prime is 231325013. The next prime is 231325063. The reversal of 231325022 is 220523132.

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

It is a super-2 number, since 2×2313250222 = 107022531606600968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231324985 and 231325003.

It is a congruent number.

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, 561263 + ... + 561674.

It is an arithmetic number, because the mean of its divisors is an integer number (43794582).

Almost surely, 2231325022 is an apocalyptic number.

231325022 is a deficient number, since it is larger than the sum of its proper divisors (119031634).

231325022 is a wasteful number, since it uses less digits than its factorization.

231325022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123042.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 231325022 is about 15209.3728338811. The cubic root of 231325022 is about 613.8668821963.

Adding to 231325022 its reverse (220523132), we get a palindrome (451848154).

The spelling of 231325022 in words is "two hundred thirty-one million, three hundred twenty-five thousand, twenty-two".

Divisors: 1 2 103 206 1122937 2245874 115662511 231325022