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413668081 = 715826311
BaseRepresentation
bin11000101010000…
…001001011110001
31001211101111221001
4120222001023301
51321344334311
6105014202001
713152056251
oct3052011361
91054344831
10413668081
111a2560a52
12b6653301
1367918918
143cd21961
15264b34c1
hex18a812f1

413668081 has 4 divisors (see below), whose sum is σ = 419494464. Its totient is φ = 407841700.

The previous prime is 413668067. The next prime is 413668091. The reversal of 413668081 is 180866314.

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, and also an emirpimes, since its reverse is a distinct semiprime: 180866314 = 290433157.

It is a cyclic number.

It is not a de Polignac number, because 413668081 - 25 = 413668049 is a prime.

It is a super-2 number, since 2×4136680812 = 342242562476445122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 413668081.

It is not an unprimeable number, because it can be changed into a prime (413668051) 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, 2913085 + ... + 2913226.

It is an arithmetic number, because the mean of its divisors is an integer number (104873616).

Almost surely, 2413668081 is an apocalyptic number.

It is an amenable number.

413668081 is a deficient number, since it is larger than the sum of its proper divisors (5826383).

413668081 is an equidigital number, since it uses as much as digits as its factorization.

413668081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5826382.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 413668081 is about 20338.8318494450. The cubic root of 413668081 is about 745.1047589274.

The spelling of 413668081 in words is "four hundred thirteen million, six hundred sixty-eight thousand, eighty-one".

Divisors: 1 71 5826311 413668081