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30423413220 = 2235507056887
BaseRepresentation
bin11100010101011000…
…000111000111100100
32220112021000112010020
4130111120013013210
5444301343210340
621550515155140
72124630513504
oct342530070744
986467015106
1030423413220
11119a2250712
125a908a5ab0
132b3b013575
141688785a04
15bd0db49d0
hex7156071e4

30423413220 has 24 divisors (see below), whose sum is σ = 85185557184. Its totient is φ = 8112910176.

The previous prime is 30423413203. The next prime is 30423413221. The reversal of 30423413220 is 2231432403.

It is not an unprimeable number, because it can be changed into a prime (30423413221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253528384 + ... + 253528503.

It is an arithmetic number, because the mean of its divisors is an integer number (3549398216).

Almost surely, 230423413220 is an apocalyptic number.

30423413220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30423413220 is an abundant number, since it is smaller than the sum of its proper divisors (54762143964).

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

30423413220 is a wasteful number, since it uses less digits than its factorization.

30423413220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507056899 (or 507056897 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 30423413220 its reverse (2231432403), we get a palindrome (32654845623).

The spelling of 30423413220 in words is "thirty billion, four hundred twenty-three million, four hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 507056887 1014113774 1521170661 2028227548 2535284435 3042341322 5070568870 6084682644 7605853305 10141137740 15211706610 30423413220