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20014345 = 513367839
BaseRepresentation
bin100110001011…
…0010100001001
31101122211112001
41030112110021
520110424340
61552551001
7332055601
oct114262411
941584461
1020014345
111033008a
126852461
1341b9b10
14292dc01
151b5529a
hex1316509

20014345 has 16 divisors (see below), whose sum is σ = 25966080. Its totient is φ = 14721984.

The previous prime is 20014331. The next prime is 20014349. The reversal of 20014345 is 54341002.

20014345 is nontrivially palindromic in base 8.

It is a cyclic number.

It is not a de Polignac number, because 20014345 - 27 = 20014217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20014349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23436 + ... + 24274.

It is an arithmetic number, because the mean of its divisors is an integer number (1622880).

Almost surely, 220014345 is an apocalyptic number.

It is an amenable number.

20014345 is a deficient number, since it is larger than the sum of its proper divisors (5951735).

20014345 is a wasteful number, since it uses less digits than its factorization.

20014345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20014345 is about 4473.7394872746. The cubic root of 20014345 is about 271.5066433510.

Adding to 20014345 its reverse (54341002), we get a palindrome (74355347).

The spelling of 20014345 in words is "twenty million, fourteen thousand, three hundred forty-five".

Divisors: 1 5 13 65 367 839 1835 4195 4771 10907 23855 54535 307913 1539565 4002869 20014345