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231030011 = 3114395179
BaseRepresentation
bin11011100010100…
…11110011111011
3121002201112121002
431301103303323
5433120430021
634531435215
75503502612
oct1561236373
9532645532
10231030011
111094572a3
1265455b0b
1338b30064
142297c879
151543850b
hexdc53cfb

231030011 has 8 divisors (see below), whose sum is σ = 238694400. Its totient is φ = 223378920.

The previous prime is 231030001. The next prime is 231030031. The reversal of 231030011 is 110030132.

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 231030011 - 26 = 231029947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231029974 and 231030001.

It is not an unprimeable number, because it can be changed into a prime (231030001) 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, 42020 + ... + 47198.

It is an arithmetic number, because the mean of its divisors is an integer number (29836800).

Almost surely, 2231030011 is an apocalyptic number.

231030011 is a deficient number, since it is larger than the sum of its proper divisors (7664389).

231030011 is a wasteful number, since it uses less digits than its factorization.

231030011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6649.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 231030011 is about 15199.6714109220. The cubic root of 231030011 is about 613.6058144270.

Adding to 231030011 its reverse (110030132), we get a palindrome (341060143).

The spelling of 231030011 in words is "two hundred thirty-one million, thirty thousand, eleven".

Divisors: 1 31 1439 5179 44609 160549 7452581 231030011