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415030021 = 7169934897
BaseRepresentation
bin11000101111001…
…101101100000101
31001220221201011021
4120233031230011
51322221430041
6105103311141
713166461030
oct3057155405
91056851137
10415030021
111a330121a
12b6bab4b1
1367ca47c3
143d198017
1526681cd1
hex18bcdb05

415030021 has 8 divisors (see below), whose sum is σ = 474612800. Its totient is φ = 355520448.

The previous prime is 415030019. The next prime is 415030079. The reversal of 415030021 is 120030514.

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 415030021 - 21 = 415030019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 415029977 and 415030004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415030001) 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, 5556 + ... + 29341.

It is an arithmetic number, because the mean of its divisors is an integer number (59326600).

Almost surely, 2415030021 is an apocalyptic number.

It is an amenable number.

415030021 is a deficient number, since it is larger than the sum of its proper divisors (59582779).

415030021 is a wasteful number, since it uses less digits than its factorization.

415030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36603.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 415030021 is about 20372.2856106034. The cubic root of 415030021 is about 745.9215783175.

Adding to 415030021 its reverse (120030514), we get a palindrome (535060535).

The spelling of 415030021 in words is "four hundred fifteen million, thirty thousand, twenty-one".

Divisors: 1 7 1699 11893 34897 244279 59290003 415030021