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203082005 = 5710215683
BaseRepresentation
bin11000001101011…
…00100100010101
3112011010122010202
430012230210111
5403442111010
632052430245
75014111550
oct1406544425
9464118122
10203082005
11a46a8575
1258018385
13330c6089
141cd85697
1512c676a5
hexc1ac915

203082005 has 16 divisors (see below), whose sum is σ = 278834304. Its totient is φ = 139095360.

The previous prime is 203081999. The next prime is 203082037. The reversal of 203082005 is 500280302.

It is not a de Polignac number, because 203082005 - 210 = 203080981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32894 + ... + 38576.

It is an arithmetic number, because the mean of its divisors is an integer number (17427144).

Almost surely, 2203082005 is an apocalyptic number.

It is an amenable number.

203082005 is a deficient number, since it is larger than the sum of its proper divisors (75752299).

203082005 is a wasteful number, since it uses less digits than its factorization.

203082005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6716.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 203082005 is about 14250.6843695312. The cubic root of 203082005 is about 587.7921938713.

The spelling of 203082005 in words is "two hundred three million, eighty-two thousand, five".

Divisors: 1 5 7 35 1021 5105 5683 7147 28415 35735 39781 198905 5802343 29011715 40616401 203082005