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20031314 = 210015657
BaseRepresentation
bin100110001101…
…0011101010010
31101200200210112
41030122131102
520112000224
61553201322
7332156222
oct114323522
941620715
1020031314
1110341906
126860242
1341c4764
142936082
151b5a30e
hex131a752

20031314 has 4 divisors (see below), whose sum is σ = 30046974. Its totient is φ = 10015656.

The previous prime is 20031313. The next prime is 20031331. The reversal of 20031314 is 41313002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10452289 + 9579025 = 3233^2 + 3095^2 .

It is not an unprimeable number, because it can be changed into a prime (20031311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5007827 + ... + 5007830.

Almost surely, 220031314 is an apocalyptic number.

20031314 is a deficient number, since it is larger than the sum of its proper divisors (10015660).

20031314 is a wasteful number, since it uses less digits than its factorization.

20031314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10015659.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20031314 is about 4475.6355973202. The cubic root of 20031314 is about 271.5833532439.

Adding to 20031314 its reverse (41313002), we get a palindrome (61344316).

The spelling of 20031314 in words is "twenty million, thirty-one thousand, three hundred fourteen".

Divisors: 1 2 10015657 20031314