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215064041 = 713029071
BaseRepresentation
bin11001101000110…
…01110111101001
3112222200101101212
430310121313221
5420024022131
633201322505
75221004603
oct1464316751
9488611355
10215064041
11100441885
1260036435
133572cb3a
14207c4173
1513d32a2b
hexcd19de9

215064041 has 4 divisors (see below), whose sum is σ = 218093184. Its totient is φ = 212034900.

The previous prime is 215064023. The next prime is 215064049. The reversal of 215064041 is 140460512.

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 a cyclic number.

It is not a de Polignac number, because 215064041 - 26 = 215063977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215063998 and 215064016.

It is not an unprimeable number, because it can be changed into a prime (215064049) 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, 1514465 + ... + 1514606.

It is an arithmetic number, because the mean of its divisors is an integer number (54523296).

Almost surely, 2215064041 is an apocalyptic number.

It is an amenable number.

215064041 is a deficient number, since it is larger than the sum of its proper divisors (3029143).

215064041 is an equidigital number, since it uses as much as digits as its factorization.

215064041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029142.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 215064041 is about 14665.0619159961. The cubic root of 215064041 is about 599.1321165321.

The spelling of 215064041 in words is "two hundred fifteen million, sixty-four thousand, forty-one".

Divisors: 1 71 3029071 215064041