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2828816838 = 23352385497
BaseRepresentation
bin1010100010011100…
…0101000111000110
321022010220210012000
42220213011013012
521243134114323
61144411210130
7130046355261
oct25047050706
97263823160
102828816838
11122187aa61
1266b446946
133610a9823
141cb9a5cd8
1511852ce43
hexa89c51c6

2828816838 has 16 divisors (see below), whose sum is σ = 6286259760. Its totient is φ = 942938928.

The previous prime is 2828816827. The next prime is 2828816857. The reversal of 2828816838 is 8386188282.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 52385497 = 2828816838 / (2 + 8 + 2 + 8 + 8 + 1 + 6 + 8 + 3 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26192695 + ... + 26192802.

It is an arithmetic number, because the mean of its divisors is an integer number (392891235).

Almost surely, 22828816838 is an apocalyptic number.

2828816838 is an abundant number, since it is smaller than the sum of its proper divisors (3457442922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2828816838 is a wasteful number, since it uses less digits than its factorization.

2828816838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52385508 (or 52385502 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 54.

The square root of 2828816838 is about 53186.6227354210. The cubic root of 2828816838 is about 1414.2785115992.

The spelling of 2828816838 in words is "two billion, eight hundred twenty-eight million, eight hundred sixteen thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 54 52385497 104770994 157156491 314312982 471469473 942938946 1414408419 2828816838