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2822181828 = 223235181819
BaseRepresentation
bin1010100000110111…
…0001001111000100
321021200102200122220
42220031301033010
521234434304303
61144013052340
7126636102234
oct25015611704
97250380586
102822181828
111219058a84
126691870b0
1335c8c579b
141cab59cc4
15117b6c053
hexa83713c4

2822181828 has 12 divisors (see below), whose sum is σ = 6585090960. Its totient is φ = 940727272.

The previous prime is 2822181827. The next prime is 2822181833. The reversal of 2822181828 is 8281812282.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2822181828.

It is not an unprimeable number, because it can be changed into a prime (2822181827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117590898 + ... + 117590921.

It is an arithmetic number, because the mean of its divisors is an integer number (548757580).

Almost surely, 22822181828 is an apocalyptic number.

It is an amenable number.

2822181828 is an abundant number, since it is smaller than the sum of its proper divisors (3762909132).

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

2822181828 is a wasteful number, since it uses less digits than its factorization.

2822181828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235181826 (or 235181824 counting only the distinct ones).

The product of its digits is 65536, while the sum is 42.

The square root of 2822181828 is about 53124.2113164986. The cubic root of 2822181828 is about 1413.1719125353.

The spelling of 2822181828 in words is "two billion, eight hundred twenty-two million, one hundred eighty-one thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 235181819 470363638 705545457 940727276 1411090914 2822181828