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20014253 = 7171091543
BaseRepresentation
bin100110001011…
…0010010101101
31101122211101122
41030112102231
520110424003
61552550325
7332055410
oct114262255
941584348
1020014253
1110330006
1268523a5
1341b9a6c
14292db77
151b55238
hex13164ad

20014253 has 16 divisors (see below), whose sum is σ = 24456960. Its totient is φ = 15987456.

The previous prime is 20014249. The next prime is 20014259. The reversal of 20014253 is 35241002.

It is a cyclic number.

It is not a de Polignac number, because 20014253 - 22 = 20014249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20014259) 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, 12200 + ... + 13742.

It is an arithmetic number, because the mean of its divisors is an integer number (1528560).

Almost surely, 220014253 is an apocalyptic number.

It is an amenable number.

20014253 is a deficient number, since it is larger than the sum of its proper divisors (4442707).

20014253 is a wasteful number, since it uses less digits than its factorization.

20014253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20014253 is about 4473.7292050369. The cubic root of 20014253 is about 271.5062273386.

Adding to 20014253 its reverse (35241002), we get a palindrome (55255255).

The spelling of 20014253 in words is "twenty million, fourteen thousand, two hundred fifty-three".

Divisors: 1 7 17 109 119 763 1543 1853 10801 12971 26231 168187 183617 1177309 2859179 20014253