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232240031 = 4123772383
BaseRepresentation
bin11011101011110…
…11001110011111
3121012000000102122
431311323032133
5433423140111
635013413155
75520002432
oct1565731637
9535000378
10232240031
1110a103411
126593a1bb
1339164a4a
1422bb5819
15155c6cdb
hexdd7b39f

232240031 has 8 divisors (see below), whose sum is σ = 238104384. Its totient is φ = 226385280.

The previous prime is 232240007. The next prime is 232240049. The reversal of 232240031 is 130042232.

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 232240031 - 218 = 231977887 is a prime.

It is a super-2 number, since 2×2322400312 = 107870863997761922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232239991 and 232240009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232240051) 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, 96266 + ... + 98648.

It is an arithmetic number, because the mean of its divisors is an integer number (29763048).

Almost surely, 2232240031 is an apocalyptic number.

232240031 is a deficient number, since it is larger than the sum of its proper divisors (5864353).

232240031 is a wasteful number, since it uses less digits than its factorization.

232240031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4801.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 232240031 is about 15239.4235783379. The cubic root of 232240031 is about 614.6752033842.

Adding to 232240031 its reverse (130042232), we get a palindrome (362282263).

The spelling of 232240031 in words is "two hundred thirty-two million, two hundred forty thousand, thirty-one".

Divisors: 1 41 2377 2383 97457 97703 5664391 232240031