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231011042 = 2296759447
BaseRepresentation
bin11011100010011…
…11001011100010
3121002200120120112
431301033023202
5433114323132
634531211322
75503363403
oct1561171342
9532616515
10231011042
11109444019
1265446b42
1338b24532
14229759aa
1515432ab2
hexdc4f2e2

231011042 has 16 divisors (see below), whose sum is σ = 363821760. Its totient is φ = 109856208.

The previous prime is 231011023. The next prime is 231011069. The reversal of 231011042 is 240110132.

231011042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2310110422 = 106732203051851528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25838 + ... + 33609.

It is an arithmetic number, because the mean of its divisors is an integer number (22738860).

Almost surely, 2231011042 is an apocalyptic number.

231011042 is a deficient number, since it is larger than the sum of its proper divisors (132810718).

231011042 is a wasteful number, since it uses less digits than its factorization.

231011042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59545.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 231011042 is about 15199.0474043606. The cubic root of 231011042 is about 613.5890203501.

Adding to 231011042 its reverse (240110132), we get a palindrome (471121174).

The spelling of 231011042 in words is "two hundred thirty-one million, eleven thousand, forty-two".

Divisors: 1 2 29 58 67 134 1943 3886 59447 118894 1723963 3447926 3982949 7965898 115505521 231011042