Search a number
-
+
822028884 = 22368502407
BaseRepresentation
bin110000111111110…
…010101001010100
32010021210101122020
4300333302221110
53140414411014
6213322533140
726241062445
oct6077625124
92107711566
10822028884
11392017516
121ab3671b0
131013c6931
147b2612cc
154c2791a9
hex30ff2a54

822028884 has 12 divisors (see below), whose sum is σ = 1918067424. Its totient is φ = 274009624.

The previous prime is 822028877. The next prime is 822028913. The reversal of 822028884 is 488820228.

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

It is a super-3 number, since 3×8220288843 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34251192 + ... + 34251215.

It is an arithmetic number, because the mean of its divisors is an integer number (159838952).

Almost surely, 2822028884 is an apocalyptic number.

It is an amenable number.

822028884 is an abundant number, since it is smaller than the sum of its proper divisors (1096038540).

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

822028884 is a wasteful number, since it uses less digits than its factorization.

822028884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68502414 (or 68502412 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 42.

The square root of 822028884 is about 28671.0460918328. The cubic root of 822028884 is about 936.7614840221.

The spelling of 822028884 in words is "eight hundred twenty-two million, twenty-eight thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 68502407 137004814 205507221 274009628 411014442 822028884