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30421310000 = 24546149871
BaseRepresentation
bin11100010101010000…
…000101101000110000
32220112010001200001012
4130111100011220300
5444300323410000
621550402130052
72124603603614
oct342520055060
986463050035
1030421310000
11119a1044514
125a90050928
132b3a758163
141688399344
15bd0aeb735
hex715405a30

30421310000 has 100 divisors (see below), whose sum is σ = 74861961504. Its totient is φ = 11968800000.

The previous prime is 30421309999. The next prime is 30421310009. The reversal of 30421310000 is 1312403.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×304213100002 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30421310009) 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 19 ways as a sum of consecutive naturals, for example, 585065 + ... + 634935.

Almost surely, 230421310000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30421310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37430980752).

30421310000 is an abundant number, since it is smaller than the sum of its proper divisors (44440651504).

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

30421310000 is an equidigital number, since it uses as much as digits as its factorization.

30421310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49960 (or 49939 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30421310000 its reverse (1312403), we get a palindrome (30422622403).

The spelling of 30421310000 in words is "thirty billion, four hundred twenty-one million, three hundred ten thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 61 80 100 122 125 200 244 250 305 400 488 500 610 625 976 1000 1220 1250 1525 2000 2440 2500 3050 4880 5000 6100 7625 10000 12200 15250 24400 30500 38125 49871 61000 76250 99742 122000 152500 199484 249355 305000 398968 498710 610000 797936 997420 1246775 1994840 2493550 3042131 3989680 4987100 6084262 6233875 9974200 12168524 12467750 15210655 19948400 24337048 24935500 30421310 31169375 48674096 49871000 60842620 62338750 76053275 99742000 121685240 124677500 152106550 243370480 249355000 304213100 380266375 498710000 608426200 760532750 1216852400 1521065500 1901331875 3042131000 3802663750 6084262000 7605327500 15210655000 30421310000