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21423000410 = 2572166726227
BaseRepresentation
bin10011111100111010…
…010000101101011010
32001022000011011211122
4103330322100231122
5322333242003120
613501441125242
71355611333100
oct237472205532
961260134748
1021423000410
1190a37a8319
12419a629822
13203544a406
1410732a3c70
15855b55a25
hex4fce90b5a

21423000410 has 48 divisors (see below), whose sum is σ = 44885759904. Its totient is φ = 7340342688.

The previous prime is 21423000409. The next prime is 21423000419. The reversal of 21423000410 is 1400032412.

It is a super-3 number, since 3×214230004103 (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21423000419) 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 23 ways as a sum of consecutive naturals, for example, 803717 + ... + 829943.

It is an arithmetic number, because the mean of its divisors is an integer number (935119998).

Almost surely, 221423000410 is an apocalyptic number.

21423000410 is an abundant number, since it is smaller than the sum of its proper divisors (23462759494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21423000410 is a wasteful number, since it uses less digits than its factorization.

21423000410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27915 (or 27908 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21423000410 its reverse (1400032412), we get a palindrome (22823032822).

The spelling of 21423000410 in words is "twenty-one billion, four hundred twenty-three million, four hundred ten", and thus it is an aban number.

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 1667 3334 8335 11669 16670 23338 26227 52454 58345 81683 116690 131135 163366 183589 262270 367178 408415 816830 917945 1285123 1835890 2570246 6425615 12851230 43720409 87440818 218602045 306042863 437204090 612085726 1530214315 2142300041 3060428630 4284600082 10711500205 21423000410