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314212143 = 3753282311
BaseRepresentation
bin10010101110100…
…111111100101111
3210220020122000210
4102232213330233
51120414242033
651102353503
710533521250
oct2256477457
9726218023
10314212143
11151401263
128928b893
135013595b
142da32b27
151c8b9d63
hex12ba7f2f

314212143 has 16 divisors (see below), whose sum is σ = 487835136. Its totient is φ = 176161440.

The previous prime is 314212123. The next prime is 314212147. The reversal of 314212143 is 341212413.

It is not a de Polignac number, because 314212143 - 29 = 314211631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314212147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140043 + ... + 142268.

It is an arithmetic number, because the mean of its divisors is an integer number (30489696).

Almost surely, 2314212143 is an apocalyptic number.

314212143 is a deficient number, since it is larger than the sum of its proper divisors (173622993).

314212143 is a wasteful number, since it uses less digits than its factorization.

314212143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282374.

The product of its digits is 576, while the sum is 21.

The square root of 314212143 is about 17726.0300970071. The cubic root of 314212143 is about 679.8414732824.

Adding to 314212143 its reverse (341212413), we get a palindrome (655424556).

The spelling of 314212143 in words is "three hundred fourteen million, two hundred twelve thousand, one hundred forty-three".

Divisors: 1 3 7 21 53 159 371 1113 282311 846933 1976177 5928531 14962483 44887449 104737381 314212143