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20067115 = 54013423
BaseRepresentation
bin100110010001…
…1001100101011
31101202111220111
41030203030223
520114121430
61554035151
7332365465
oct114431453
941674814
1020067115
11103667a2
126878ab7
134207b43
142945135
151b65c2a
hex132332b

20067115 has 4 divisors (see below), whose sum is σ = 24080544. Its totient is φ = 16053688.

The previous prime is 20067079. The next prime is 20067119. The reversal of 20067115 is 51176002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51176002 = 225588001.

It is a cyclic number.

It is not a de Polignac number, because 20067115 - 217 = 19936043 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20067119) 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, 2006707 + ... + 2006716.

It is an arithmetic number, because the mean of its divisors is an integer number (6020136).

Almost surely, 220067115 is an apocalyptic number.

20067115 is a deficient number, since it is larger than the sum of its proper divisors (4013429).

20067115 is an equidigital number, since it uses as much as digits as its factorization.

20067115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013428.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 20067115 is about 4479.6333555326. The cubic root of 20067115 is about 271.7450528861.

The spelling of 20067115 in words is "twenty million, sixty-seven thousand, one hundred fifteen".

Divisors: 1 5 4013423 20067115