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831430083 = 31122290441
BaseRepresentation
bin110001100011101…
…001110111000011
32010221111000122210
4301203221313003
53200321230313
6214300233203
726414016261
oct6143516703
92127430583
10831430083
11397358800
121b253b803
13103338a83
147c5cb431
154ced49c3
hex318e9dc3

831430083 has 12 divisors (see below), whose sum is σ = 1218515144. Its totient is φ = 503896800.

The previous prime is 831430031. The next prime is 831430109. The reversal of 831430083 is 380034138.

It is not a de Polignac number, because 831430083 - 225 = 797875651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 831430083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831430003) 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, 1144858 + ... + 1145583.

Almost surely, 2831430083 is an apocalyptic number.

831430083 is a deficient number, since it is larger than the sum of its proper divisors (387085061).

831430083 is a wasteful number, since it uses less digits than its factorization.

831430083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290466 (or 2290455 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 831430083 is about 28834.5293528436. The cubic root of 831430083 is about 940.3190719300.

The spelling of 831430083 in words is "eight hundred thirty-one million, four hundred thirty thousand, eighty-three".

Divisors: 1 3 11 33 121 363 2290441 6871323 25194851 75584553 277143361 831430083