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2031240469 = 23333126513
BaseRepresentation
bin111100100010010…
…0100010100010101
312020120010201002111
41321010210110111
513124444143334
6533320311021
7101223154606
oct17104442425
95216121074
102031240469
11952645035
12488312471
13264a94b4b
14153aabdad
15bd4d4064
hex79124515

2031240469 has 8 divisors (see below), whose sum is σ = 2120271552. Its totient is φ = 1942269120.

The previous prime is 2031240451. The next prime is 2031240481. The reversal of 2031240469 is 9640421302.

It is a happy number.

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 2031240469 - 25 = 2031240437 is a prime.

It is a super-2 number, since 2×20312404692 = 8251875685806679922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031240469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031240439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63357 + ... + 89869.

It is an arithmetic number, because the mean of its divisors is an integer number (265033944).

Almost surely, 22031240469 is an apocalyptic number.

It is an amenable number.

2031240469 is a deficient number, since it is larger than the sum of its proper divisors (89031083).

2031240469 is a wasteful number, since it uses less digits than its factorization.

2031240469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29867.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2031240469 is about 45069.2852062244. The cubic root of 2031240469 is about 1266.4472739676.

The spelling of 2031240469 in words is "two billion, thirty-one million, two hundred forty thousand, four hundred sixty-nine".

Divisors: 1 23 3331 26513 76613 609799 88314803 2031240469