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6429130420 = 2251031311791
BaseRepresentation
bin1011111110011010…
…01011111010110100
3121121001112122221111
411333031023322310
5101131324133140
62541542324404
7315214464316
oct57715137264
917531478844
106429130420
1127aa092929
1212b5129704
137b5c695ab
1444dbd77b6
152796527ea
hex17f34beb4

6429130420 has 24 divisors (see below), whose sum is σ = 13514312448. Its totient is φ = 2569149600.

The previous prime is 6429130403. The next prime is 6429130459. The reversal of 6429130420 is 240319246.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135276 + ... + 176515.

It is an arithmetic number, because the mean of its divisors is an integer number (563096352).

Almost surely, 26429130420 is an apocalyptic number.

It is an amenable number.

6429130420 is an abundant number, since it is smaller than the sum of its proper divisors (7085182028).

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

6429130420 is a wasteful number, since it uses less digits than its factorization.

6429130420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312831 (or 312829 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 6429130420 is about 80181.8584219648. The cubic root of 6429130420 is about 1859.4481752225.

Adding to 6429130420 its reverse (240319246), we get a palindrome (6669449666).

The spelling of 6429130420 in words is "six billion, four hundred twenty-nine million, one hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1031 2062 4124 5155 10310 20620 311791 623582 1247164 1558955 3117910 6235820 321456521 642913042 1285826084 1607282605 3214565210 6429130420