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2040304031 = 103110317959
BaseRepresentation
bin111100110011100…
…1001000110011111
312021012012011221222
41321213021012133
513134304212111
6534242443555
7101363204153
oct17147110637
95235164858
102040304031
11957775687
1248b3635bb
132669193bc
14154d8b063
15be1c47db
hex799c919f

2040304031 has 8 divisors (see below), whose sum is σ = 2062095360. Its totient is φ = 2018551032.

The previous prime is 2040304003. The next prime is 2040304039. The reversal of 2040304031 is 1304030402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2040304031 is a prime.

It is a super-2 number, since 2×20403040312 = 8325681077829697922, 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 (2040304039) 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, 104630 + ... + 122588.

It is an arithmetic number, because the mean of its divisors is an integer number (257761920).

Almost surely, 22040304031 is an apocalyptic number.

2040304031 is a deficient number, since it is larger than the sum of its proper divisors (21791329).

2040304031 is a wasteful number, since it uses less digits than its factorization.

2040304031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19165.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2040304031 is about 45169.7247168942. The cubic root of 2040304031 is about 1268.3281431628.

Adding to 2040304031 its reverse (1304030402), we get a palindrome (3344334433).

The spelling of 2040304031 in words is "two billion, forty million, three hundred four thousand, thirty-one".

Divisors: 1 103 1103 17959 113609 1849777 19808777 2040304031