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415140081 = 3138380027
BaseRepresentation
bin11000101111101…
…000100011110001
31001221011022010120
4120233220203301
51322233440311
6105105520453
713200426636
oct3057504361
91057138116
10415140081
111a3376984
12b7043129
1368012925
143d1c618d
15266a4706
hex18be88f1

415140081 has 4 divisors (see below), whose sum is σ = 553520112. Its totient is φ = 276760052.

The previous prime is 415140079. The next prime is 415140083. The reversal of 415140081 is 180041514.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (415140079) and next prime (415140083).

It is a cyclic number.

It is not a de Polignac number, because 415140081 - 21 = 415140079 is a prime.

It is a super-2 number, since 2×4151400812 = 344682573705373122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (415140083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69190011 + ... + 69190016.

It is an arithmetic number, because the mean of its divisors is an integer number (138380028).

Almost surely, 2415140081 is an apocalyptic number.

It is an amenable number.

415140081 is a deficient number, since it is larger than the sum of its proper divisors (138380031).

415140081 is a wasteful number, since it uses less digits than its factorization.

415140081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138380030.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 415140081 is about 20374.9866503024. The cubic root of 415140081 is about 745.9875083860.

Adding to 415140081 its reverse (180041514), we get a palindrome (595181595).

The spelling of 415140081 in words is "four hundred fifteen million, one hundred forty thousand, eighty-one".

Divisors: 1 3 138380027 415140081