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1228823196 = 223791296227
BaseRepresentation
bin100100100111110…
…0101101010011100
310011122020200112020
41021033211222130
510004034320241
6321533540140
742310552626
oct11117455234
93148220466
101228823196
11580703067
122a3644650
13167776923
14b92b3c16
1572d30b66
hex493e5a9c

1228823196 has 24 divisors (see below), whose sum is σ = 2903550720. Its totient is φ = 404422512.

The previous prime is 1228823191. The next prime is 1228823201. The reversal of 1228823196 is 6913288221.

It is an interprime number because it is at equal distance from previous prime (1228823191) and next prime (1228823201).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228823191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647166 + ... + 649061.

It is an arithmetic number, because the mean of its divisors is an integer number (120981280).

Almost surely, 21228823196 is an apocalyptic number.

It is an amenable number.

1228823196 is an abundant number, since it is smaller than the sum of its proper divisors (1674727524).

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

1228823196 is a wasteful number, since it uses less digits than its factorization.

1228823196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296313 (or 1296311 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 1228823196 is about 35054.5745374266. The cubic root of 1228823196 is about 1071.0994597448.

The spelling of 1228823196 in words is "one billion, two hundred twenty-eight million, eight hundred twenty-three thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 12 79 158 237 316 474 948 1296227 2592454 3888681 5184908 7777362 15554724 102401933 204803866 307205799 409607732 614411598 1228823196