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313804143 = 32107325861
BaseRepresentation
bin10010101101000…
…100010101101111
3210212110220100200
4102231010111233
51120313213033
651045524543
710530201612
oct2255042557
9725426320
10313804143
11151152774
1289113753
1350022033
142d968179
151c839013
hex12b4456f

313804143 has 12 divisors (see below), whose sum is σ = 457510248. Its totient is φ = 207246960.

The previous prime is 313804091. The next prime is 313804163. The reversal of 313804143 is 341408313.

It is not a de Polignac number, because 313804143 - 26 = 313804079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313804163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161968 + ... + 163893.

It is an arithmetic number, because the mean of its divisors is an integer number (38125854).

Almost surely, 2313804143 is an apocalyptic number.

313804143 is a deficient number, since it is larger than the sum of its proper divisors (143706105).

313804143 is a wasteful number, since it uses less digits than its factorization.

313804143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325974 (or 325971 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 313804143 is about 17714.5178596540. The cubic root of 313804143 is about 679.5470909997.

The spelling of 313804143 in words is "three hundred thirteen million, eight hundred four thousand, one hundred forty-three".

Divisors: 1 3 9 107 321 963 325861 977583 2932749 34867127 104601381 313804143