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1240141031 = 3319373649
BaseRepresentation
bin100100111101011…
…0000110011100111
310012102112200200022
41021322300303213
510014434003111
6323020305355
742506011343
oct11172606347
93172480608
101240141031
11587033348
122a73a225b
13169c0a27c
14ba9bc623
1573d192db
hex49eb0ce7

1240141031 has 4 divisors (see below), whose sum is σ = 1240518000. Its totient is φ = 1239764064.

The previous prime is 1240141003. The next prime is 1240141061. The reversal of 1240141031 is 1301410421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1301410421 = 8914622589.

It is a cyclic number.

It is not a de Polignac number, because 1240141031 - 210 = 1240140007 is a prime.

It is a super-2 number, since 2×12401410312 = 3075899553539485922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240141061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183506 + ... + 190143.

It is an arithmetic number, because the mean of its divisors is an integer number (310129500).

Almost surely, 21240141031 is an apocalyptic number.

1240141031 is a deficient number, since it is larger than the sum of its proper divisors (376969).

1240141031 is an equidigital number, since it uses as much as digits as its factorization.

1240141031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376968.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1240141031 is about 35215.6361720188. The cubic root of 1240141031 is about 1074.3777992383.

Adding to 1240141031 its reverse (1301410421), we get a palindrome (2541551452).

The spelling of 1240141031 in words is "one billion, two hundred forty million, one hundred forty-one thousand, thirty-one".

Divisors: 1 3319 373649 1240141031