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22011103031 = 433791350623
BaseRepresentation
bin10100011111111101…
…101100011100110111
32002210222202212222012
4110133331230130313
5330034320244111
614040050154435
71406312201021
oct243775543467
962728685865
1022011103031
11937576a545
124323582a1b
1320ca23b928
1410cb431011
1588c5c348b
hex51ff6c737

22011103031 has 8 divisors (see below), whose sum is σ = 22582433280. Its totient is φ = 21442474872.

The previous prime is 22011103021. The next prime is 22011103067. The reversal of 22011103031 is 13030111022.

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-22011103031 is a prime.

It is a super-2 number, since 2×220111030312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22011102997 and 22011103015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011103021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659015 + ... + 691608.

It is an arithmetic number, because the mean of its divisors is an integer number (2822804160).

Almost surely, 222011103031 is an apocalyptic number.

22011103031 is a deficient number, since it is larger than the sum of its proper divisors (571330249).

22011103031 is a wasteful number, since it uses less digits than its factorization.

22011103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351045.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 22011103031 its reverse (13030111022), we get a palindrome (35041214053).

The spelling of 22011103031 in words is "twenty-two billion, eleven million, one hundred three thousand, thirty-one".

Divisors: 1 43 379 16297 1350623 58076789 511886117 22011103031