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30420240100 = 22521009301489
BaseRepresentation
bin11100010101001100…
…000000011011100100
32220112001001022102021
4130111030000123210
5444300040140400
621550323152524
72124561526435
oct342514003344
986461038367
1030420240100
11119a04836a8
125a8b815744
132b3a472193
14168819b48c
15bd098971a
hex7153006e4

30420240100 has 36 divisors (see below), whose sum is σ = 66077563300. Its totient is φ = 12155996160.

The previous prime is 30420240061. The next prime is 30420240107. The reversal of 30420240100 is 104202403.

It can be written as a sum of positive squares in 6 ways, for example, as 4811919424 + 25608320676 = 69368^2 + 160026^2 .

It is not an unprimeable number, because it can be changed into a prime (30420240107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49845 + ... + 251644.

Almost surely, 230420240100 is an apocalyptic number.

It is an amenable number.

30420240100 is an abundant number, since it is smaller than the sum of its proper divisors (35657323200).

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

30420240100 is a wasteful number, since it uses less digits than its factorization.

30420240100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302512 (or 302505 counting only the distinct ones).

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

Adding to 30420240100 its reverse (104202403), we get a palindrome (30524442503).

The spelling of 30420240100 in words is "thirty billion, four hundred twenty million, two hundred forty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1009 2018 4036 5045 10090 20180 25225 50450 100900 301489 602978 1205956 1507445 3014890 6029780 7537225 15074450 30148900 304202401 608404802 1216809604 1521012005 3042024010 6084048020 7605060025 15210120050 30420240100