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492479791 = 1913721381
BaseRepresentation
bin11101010110101…
…010010100101111
31021022200120021021
4131112222110233
52002033323131
6120511315011
715130003066
oct3526522457
91238616237
10492479791
11232aa03a1
12118b1ba67
137b05117b
14495991dd
152d37ee11
hex1d5aa52f

492479791 has 12 divisors (see below), whose sum is σ = 522589480. Its totient is φ = 462818880.

The previous prime is 492479789. The next prime is 492479797. The reversal of 492479791 is 197974294.

It is not a de Polignac number, because 492479791 - 21 = 492479789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492479797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355921 + ... + 357301.

Almost surely, 2492479791 is an apocalyptic number.

492479791 is a deficient number, since it is larger than the sum of its proper divisors (30109689).

492479791 is a wasteful number, since it uses less digits than its factorization.

492479791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1537 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 52.

The square root of 492479791 is about 22191.8857017605. The cubic root of 492479791 is about 789.7012121171.

The spelling of 492479791 in words is "four hundred ninety-two million, four hundred seventy-nine thousand, seven hundred ninety-one".

Divisors: 1 19 137 1381 2603 18769 26239 189197 356611 3594743 25919989 492479791