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420130446531 = 3461303781957
BaseRepresentation
bin1100001110100011011…
…10011101110011000011
31111011102121120000020120
412013101232131303003
523340411343242111
6521001045311323
742232136605335
oct6072156356303
91434377500216
10420130446531
111521a3758874
1269510a05543
1330806059a73
1416497923455
15adddd30406
hex61d1b9dcc3

420130446531 has 8 divisors (see below), whose sum is σ = 561389058384. Its totient is φ = 279479399520.

The previous prime is 420130446523. The next prime is 420130446539. The reversal of 420130446531 is 135644031024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (420130446523) and next prime (420130446539).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420130446531 - 23 = 420130446523 is a prime.

It is a super-2 number, since 2×4201304465312 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420130446492 and 420130446501.

It is not an unprimeable number, because it can be changed into a prime (420130446539) 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, 151889596 + ... + 151892361.

It is an arithmetic number, because the mean of its divisors is an integer number (70173632298).

Almost surely, 2420130446531 is an apocalyptic number.

420130446531 is a deficient number, since it is larger than the sum of its proper divisors (141258611853).

420130446531 is a wasteful number, since it uses less digits than its factorization.

420130446531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303782421.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 420130446531 its reverse (135644031024), we get a palindrome (555774477555).

The spelling of 420130446531 in words is "four hundred twenty billion, one hundred thirty million, four hundred forty-six thousand, five hundred thirty-one".

Divisors: 1 3 461 1383 303781957 911345871 140043482177 420130446531