Search a number
-
+
30240100420 = 22513733133343
BaseRepresentation
bin11100001010011100…
…110101000001000100
32220001111002021020021
4130022130311001010
5443412431203140
621520410144524
72120243420035
oct341234650104
986044067207
1030240100420
1111908826032
125a3b422144
132b0c04c85a
14166c2a8a8c
15bbec54b4a
hex70a735044

30240100420 has 48 divisors (see below), whose sum is σ = 64162925568. Its totient is φ = 11971111680.

The previous prime is 30240100337. The next prime is 30240100433. The reversal of 30240100420 is 2400104203.

It is a junction number, because it is equal to n+sod(n) for n = 30240100394 and 30240100403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890269 + ... + 923611.

It is an arithmetic number, because the mean of its divisors is an integer number (1336727616).

Almost surely, 230240100420 is an apocalyptic number.

It is an amenable number.

30240100420 is an abundant number, since it is smaller than the sum of its proper divisors (33922825148).

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

30240100420 is a wasteful number, since it uses less digits than its factorization.

30240100420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33820 (or 33818 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 30240100420 its reverse (2400104203), we get a palindrome (32640204623).

The spelling of 30240100420 in words is "thirty billion, two hundred forty million, one hundred thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 137 274 331 548 662 685 1324 1370 1655 2740 3310 6620 33343 45347 66686 90694 133372 166715 181388 226735 333430 453470 666860 906940 4567991 9135982 11036533 18271964 22073066 22839955 44146132 45679910 55182665 91359820 110365330 220730660 1512005021 3024010042 6048020084 7560025105 15120050210 30240100420