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12421301024 = 2511148123827
BaseRepresentation
bin10111001000101111…
…00000001100100000
31012001122212110201002
423210113200030200
5200414323113044
65412315331132
7616545213416
oct134427401440
935048773632
1012421301024
1152a4556340
1224a7a50aa8
13122c523782
1485b9692b6
154ca74074e
hex2e45e0320

12421301024 has 48 divisors (see below), whose sum is σ = 26696700576. Its totient is φ = 5641996800.

The previous prime is 12421301023. The next prime is 12421301027. The reversal of 12421301024 is 42010312421.

It is a junction number, because it is equal to n+sod(n) for n = 12421300987 and 12421301005.

It is not an unprimeable number, because it can be changed into a prime (12421301021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509399 + ... + 533225.

It is an arithmetic number, because the mean of its divisors is an integer number (556181262).

Almost surely, 212421301024 is an apocalyptic number.

It is an amenable number.

12421301024 is an abundant number, since it is smaller than the sum of its proper divisors (14275399552).

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

12421301024 is a wasteful number, since it uses less digits than its factorization.

12421301024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25329 (or 25321 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12421301024 its reverse (42010312421), we get a palindrome (54431613445).

The spelling of 12421301024 in words is "twelve billion, four hundred twenty-one million, three hundred one thousand, twenty-four".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 1481 2962 5924 11848 16291 23696 23827 32582 47392 47654 65164 95308 130328 190616 260656 262097 381232 521312 524194 762464 1048388 2096776 4193552 8387104 35287787 70575574 141151148 282302296 388165657 564604592 776331314 1129209184 1552662628 3105325256 6210650512 12421301024