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441720073 = 5321313911
BaseRepresentation
bin11010010101000…
…001110100001001
31010210011201000201
4122111001310021
51401040020243
6111455332201
713642362424
oct3225016411
91123151021
10441720073
11207380913
12103b21061
137068b032
14429449bb
1528ba504d
hex1a541d09

441720073 has 8 divisors (see below), whose sum is σ = 450380736. Its totient is φ = 433071600.

The previous prime is 441720067. The next prime is 441720089. The reversal of 441720073 is 370027144.

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 441720073 - 221 = 439622921 is a prime.

It is a super-2 number, since 2×4417200732 = 390233245782250658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (441726073) 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, 110988 + ... + 114898.

It is an arithmetic number, because the mean of its divisors is an integer number (56297592).

Almost surely, 2441720073 is an apocalyptic number.

It is an amenable number.

441720073 is a deficient number, since it is larger than the sum of its proper divisors (8660663).

441720073 is a wasteful number, since it uses less digits than its factorization.

441720073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6095.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 441720073 is about 21017.1376024424. The cubic root of 441720073 is about 761.5803179653.

The spelling of 441720073 in words is "four hundred forty-one million, seven hundred twenty thousand, seventy-three".

Divisors: 1 53 2131 3911 112943 207283 8334341 441720073