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20110301430 = 2352983927551
BaseRepresentation
bin10010101110101010…
…101101100011110110
31220220112002011100220
4102232222231203312
5312141214121210
613123305315210
71311231512262
oct225652554366
956815064326
1020110301430
11858a81712a
123a92a95b06
131b864b725b
14d8abd90a2
157ca7a7c70
hex4aeaad8f6

20110301430 has 64 divisors (see below), whose sum is σ = 49990348800. Its totient is φ = 5171465600.

The previous prime is 20110301411. The next prime is 20110301443. The reversal of 20110301430 is 3410301102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 716155 + ... + 743705.

It is an arithmetic number, because the mean of its divisors is an integer number (781099200).

Almost surely, 220110301430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20110301430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24995174400).

20110301430 is an abundant number, since it is smaller than the sum of its proper divisors (29880047370).

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

20110301430 is a wasteful number, since it uses less digits than its factorization.

20110301430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28429.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20110301430 its reverse (3410301102), we get a palindrome (23520602532).

The spelling of 20110301430 in words is "twenty billion, one hundred ten million, three hundred one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 174 290 435 839 870 1678 2517 4195 5034 8390 12585 24331 25170 27551 48662 55102 72993 82653 121655 137755 145986 165306 243310 275510 364965 413265 729930 798979 826530 1597958 2396937 3994895 4793874 7989790 11984685 23115289 23969370 46230578 69345867 115576445 138691734 231152890 346729335 670343381 693458670 1340686762 2011030143 3351716905 4022060286 6703433810 10055150715 20110301430