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2820031323 = 383109103903
BaseRepresentation
bin1010100000010110…
…0100001101011011
321021112101102201120
42220011210031123
521233412000243
61143455020323
7126611604444
oct25005441533
97245342646
102820031323
11121791a2aa
1266850a6a3
1335c3219b5
141ca75a2cb
15117894c83
hexa816435b

2820031323 has 16 divisors (see below), whose sum is σ = 3840291840. Its totient is φ = 1840312224.

The previous prime is 2820031301. The next prime is 2820031327. The reversal of 2820031323 is 3231300282.

It is not a de Polignac number, because 2820031323 - 26 = 2820031259 is a prime.

It is a super-2 number, since 2×28200313232 = 15905153325402260658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2820031293 and 2820031302.

It is not an unprimeable number, because it can be changed into a prime (2820031327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24811 + ... + 79092.

It is an arithmetic number, because the mean of its divisors is an integer number (240018240).

Almost surely, 22820031323 is an apocalyptic number.

2820031323 is a deficient number, since it is larger than the sum of its proper divisors (1020260517).

2820031323 is a wasteful number, since it uses less digits than its factorization.

2820031323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104098.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2820031323 is about 53103.9671116951. The cubic root of 2820031323 is about 1412.8128752500.

The spelling of 2820031323 in words is "two billion, eight hundred twenty million, thirty-one thousand, three hundred twenty-three".

Divisors: 1 3 83 109 249 327 9047 27141 103903 311709 8623949 11325427 25871847 33976281 940010441 2820031323