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420024131 = 4115716521
BaseRepresentation
bin11001000010010…
…000111101000011
31002021100102210022
4121002100331003
51330011233011
6105402324055
713260101102
oct3102207503
91067312708
10420024131
111a610238a
12b87b962b
13690329b7
143dad8039
1526d1b8db
hex19090f43

420024131 has 8 divisors (see below), whose sum is σ = 430608528. Its totient is φ = 409456000.

The previous prime is 420024103. The next prime is 420024133. The reversal of 420024131 is 131420024.

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

It is a cyclic number.

It is not a de Polignac number, because 420024131 - 226 = 352915267 is a prime.

It is a super-2 number, since 2×4200241312 = 352840541244610322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420024133) 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, 61151 + ... + 67671.

It is an arithmetic number, because the mean of its divisors is an integer number (53826066).

Almost surely, 2420024131 is an apocalyptic number.

420024131 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

420024131 is a deficient number, since it is larger than the sum of its proper divisors (10584397).

420024131 is a wasteful number, since it uses less digits than its factorization.

420024131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8133.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 420024131 is about 20494.4902595795. The cubic root of 420024131 is about 748.9015808265.

Adding to 420024131 its reverse (131420024), we get a palindrome (551444155).

The spelling of 420024131 in words is "four hundred twenty million, twenty-four thousand, one hundred thirty-one".

Divisors: 1 41 1571 6521 64411 267361 10244491 420024131