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30421040160 = 2535723894423
BaseRepresentation
bin11100010101001111…
…000011110000100000
32220112002112221220010
4130111033003300200
5444300241241120
621550352244520
72124601401120
oct342517036040
986462487803
1030421040160
11119a097a805
125a8bb40740
132b3a6923a4
141688328c80
15bd0a967e0
hex7153c3c20

30421040160 has 384 divisors, whose sum is σ = 115587440640. Its totient is φ = 6574841856.

The previous prime is 30421040129. The next prime is 30421040171. The reversal of 30421040160 is 6104012403.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6875709 + ... + 6880131.

It is an arithmetic number, because the mean of its divisors is an integer number (301008960).

Almost surely, 230421040160 is an apocalyptic number.

30421040160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30421040160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57793720320).

30421040160 is an abundant number, since it is smaller than the sum of its proper divisors (85166400480).

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

30421040160 is a wasteful number, since it uses less digits than its factorization.

30421040160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4560 (or 4552 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 30421040160 its reverse (6104012403), we get a palindrome (36525052563).

The spelling of 30421040160 in words is "thirty billion, four hundred twenty-one million, forty thousand, one hundred sixty".