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21003103322 = 2172311172179
BaseRepresentation
bin10011100011111000…
…011110110001011010
32000012202001012022122
4103203320132301122
5321003243301242
613352041221242
71342322301245
oct234370366132
960182035278
1021003103322
1189a8782433
1240a1a91822
131c994604b6
14103360025c
1582dd61ad2
hex4e3e1ec5a

21003103322 has 24 divisors (see below), whose sum is σ = 34546488960. Its totient is φ = 9564972480.

The previous prime is 21003103321. The next prime is 21003103349. The reversal of 21003103322 is 22330130012.

It is a super-2 number, since 2×210031033222 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 21003103322.

It is not an unprimeable number, because it can be changed into a prime (21003103321) 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 11 ways as a sum of consecutive naturals, for example, 568172 + ... + 604007.

It is an arithmetic number, because the mean of its divisors is an integer number (1439437040).

Almost surely, 221003103322 is an apocalyptic number.

21003103322 is a deficient number, since it is larger than the sum of its proper divisors (13543385638).

21003103322 is a wasteful number, since it uses less digits than its factorization.

21003103322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172246 (or 1172229 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21003103322 its reverse (22330130012), we get a palindrome (43333233334).

The spelling of 21003103322 in words is "twenty-one billion, three million, one hundred three thousand, three hundred twenty-two".

Divisors: 1 2 17 31 34 62 289 527 578 1054 8959 17918 1172179 2344358 19927043 36337549 39854086 72675098 338759731 617738333 677519462 1235476666 10501551661 21003103322