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2000022031 = 7563507491
BaseRepresentation
bin111011100110101…
…1110101000001111
312011101101122110001
41313031132220033
513044001201111
6530243225131
7100363623010
oct16715365017
95141348401
102000022031
11936a62177
124799781a7
1325b4843b7
1414d8a3007
15ba8b91c1
hex7735ea0f

2000022031 has 8 divisors (see below), whose sum is σ = 2289803904. Its totient is φ = 1711256280.

The previous prime is 2000022007. The next prime is 2000022053. The reversal of 2000022031 is 1302200002.

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 2000022031 - 29 = 2000021519 is a prime.

It is a super-2 number, since 2×20000220312 = 8000176248970729922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000021999 and 2000022017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000022131) 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, 249805 + ... + 257686.

It is an arithmetic number, because the mean of its divisors is an integer number (286225488).

Almost surely, 22000022031 is an apocalyptic number.

2000022031 is a deficient number, since it is larger than the sum of its proper divisors (289781873).

2000022031 is an equidigital number, since it uses as much as digits as its factorization.

2000022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508061.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2000022031 is about 44721.6058633855. The cubic root of 2000022031 is about 1259.9256760980.

Adding to 2000022031 its reverse (1302200002), we get a palindrome (3302222033).

The spelling of 2000022031 in words is "two billion, twenty-two thousand, thirty-one".

Divisors: 1 7 563 3941 507491 3552437 285717433 2000022031