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231440141112 = 23331913022043
BaseRepresentation
bin1101011110001011101…
…0000100101100111000
3211010101110110100002020
43113202322010230320
512242442134003422
6254153325234440
722502205511665
oct3274272045470
9733343410066
10231440141112
118a175a205a4
1238a30a02a20
1318a94b7887b
14b2b78caa6c
15604872195c
hex35e2e84b38

231440141112 has 32 divisors (see below), whose sum is σ = 578781866880. Its totient is φ = 77122511840.

The previous prime is 231440141089. The next prime is 231440141117. The reversal of 231440141112 is 211141044132.

It is a happy number.

231440141112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2314401411123 (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231440141117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1434438 + ... + 1587605.

It is an arithmetic number, because the mean of its divisors is an integer number (18086933340).

Almost surely, 2231440141112 is an apocalyptic number.

It is an amenable number.

231440141112 is an abundant number, since it is smaller than the sum of its proper divisors (347341725768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231440141112 is a wasteful number, since it uses less digits than its factorization.

231440141112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025243 (or 3025239 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 231440141112 its reverse (211141044132), we get a palindrome (442581185244).

The spelling of 231440141112 in words is "two hundred thirty-one billion, four hundred forty million, one hundred forty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 3191 6382 9573 12764 19146 25528 38292 76584 3022043 6044086 9066129 12088172 18132258 24176344 36264516 72529032 9643339213 19286678426 28930017639 38573356852 57860035278 77146713704 115720070556 231440141112