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2030320431 = 3383989627
BaseRepresentation
bin111100100000100…
…0011101100101111
312020111101222001000
41321001003230233
513124230223211
6533244451343
7101212303356
oct17101035457
95214358030
102030320431
11952076877
12487b49b53
13264832149
1415390c99d
15bd3a1656
hex79043b2f

2030320431 has 16 divisors (see below), whose sum is σ = 3011500800. Its totient is φ = 1351918584.

The previous prime is 2030320427. The next prime is 2030320441. The reversal of 2030320431 is 1340230302.

2030320431 is a `hidden beast` number, since 203 + 0 + 32 + 0 + 431 = 666.

It is not a de Polignac number, because 2030320431 - 22 = 2030320427 is a prime.

It is a super-2 number, since 2×20303204312 = 8244402105072051522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030320441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22161 + ... + 67466.

It is an arithmetic number, because the mean of its divisors is an integer number (188218800).

Almost surely, 22030320431 is an apocalyptic number.

2030320431 is a deficient number, since it is larger than the sum of its proper divisors (981180369).

2030320431 is an equidigital number, since it uses as much as digits as its factorization.

2030320431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90475 (or 90469 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2030320431 is about 45059.0771210419. The cubic root of 2030320431 is about 1266.2560352312.

Adding to 2030320431 its reverse (1340230302), we get a palindrome (3370550733).

The spelling of 2030320431 in words is "two billion, thirty million, three hundred twenty thousand, four hundred thirty-one".

Divisors: 1 3 9 27 839 2517 7551 22653 89627 268881 806643 2419929 75197053 225591159 676773477 2030320431