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2802423 = 313181397
BaseRepresentation
bin1010101100001011110111
312021101012110
422230023313
51204134143
6140022103
732551221
oct12541367
95241173
102802423
111644558
12b31933
13771750
1452d411
153a5533
hex2ac2f7

2802423 has 16 divisors (see below), whose sum is σ = 4056416. Its totient is φ = 1710720.

The previous prime is 2802407. The next prime is 2802451. The reversal of 2802423 is 3242082.

It is not a de Polignac number, because 2802423 - 24 = 2802407 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2802423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2802403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6861 + ... + 7257.

It is an arithmetic number, because the mean of its divisors is an integer number (253526).

22802423 is an apocalyptic number.

2802423 is a deficient number, since it is larger than the sum of its proper divisors (1253993).

2802423 is a wasteful number, since it uses less digits than its factorization.

2802423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2802423 is about 1674.0439062342. The cubic root of 2802423 is about 140.9866191215.

The spelling of 2802423 in words is "two million, eight hundred two thousand, four hundred twenty-three".

Divisors: 1 3 13 39 181 397 543 1191 2353 5161 7059 15483 71857 215571 934141 2802423