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2430340420 = 225121517021
BaseRepresentation
bin1001000011011100…
…0000110101000100
320021101010002022011
42100313000311010
514434131343140
61041054344004
7114140360404
oct22067006504
96241102264
102430340420
111037955802
12579abb004
132c967c871
14190aba804
15e356acea
hex90dc0d44

2430340420 has 12 divisors (see below), whose sum is σ = 5103714924. Its totient is φ = 972136160.

The previous prime is 2430340373. The next prime is 2430340433. The reversal of 2430340420 is 240430342.

It can be written as a sum of positive squares in 2 ways, for example, as 1156136004 + 1274204416 = 34002^2 + 35696^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2430340391 and 2430340400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60758491 + ... + 60758530.

It is an arithmetic number, because the mean of its divisors is an integer number (425309577).

Almost surely, 22430340420 is an apocalyptic number.

2430340420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2430340420 is an abundant number, since it is smaller than the sum of its proper divisors (2673374504).

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

2430340420 is a wasteful number, since it uses less digits than its factorization.

2430340420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121517030 (or 121517028 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 2430340420 is about 49298.4829381189. The cubic root of 2430340420 is about 1344.4842012746.

Adding to 2430340420 its reverse (240430342), we get a palindrome (2670770762).

The spelling of 2430340420 in words is "two billion, four hundred thirty million, three hundred forty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 121517021 243034042 486068084 607585105 1215170210 2430340420