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7794228 = 22313172939
BaseRepresentation
bin11101101110111000110100
3112122222200010
4131232320310
53443403403
6435020220
7123151461
oct35567064
915588603
107794228
114443a12
12273a670
1317cb890
14106c668
15a3e603
hex76ee34

7794228 has 48 divisors (see below), whose sum is σ = 20744640. Its totient is φ = 2256384.

The previous prime is 7794221. The next prime is 7794229. The reversal of 7794228 is 8224977.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7794221) 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, 1183 + ... + 4121.

It is an arithmetic number, because the mean of its divisors is an integer number (432180).

Almost surely, 27794228 is an apocalyptic number.

7794228 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7794228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10372320).

7794228 is an abundant number, since it is smaller than the sum of its proper divisors (12950412).

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

7794228 is a wasteful number, since it uses less digits than its factorization.

7794228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976 (or 2974 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 7794228 is about 2791.8144637493. The cubic root of 7794228 is about 198.2703174486.

The spelling of 7794228 in words is "seven million, seven hundred ninety-four thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 17 26 34 39 51 52 68 78 102 156 204 221 442 663 884 1326 2652 2939 5878 8817 11756 17634 35268 38207 49963 76414 99926 114621 149889 152828 199852 229242 299778 458484 599556 649519 1299038 1948557 2598076 3897114 7794228