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7833228 = 22313149337
BaseRepresentation
bin11101111000011010001100
3112201222011120
4131320122030
54001130403
6435520540
7123403254
oct35703214
915658146
107833228
114470247
122759150
131813560
14107c964
15a4ae53
hex77868c

7833228 has 48 divisors (see below), whose sum is σ = 19874400. Its totient is φ = 2386944.

The previous prime is 7833197. The next prime is 7833251. The reversal of 7833228 is 8223387.

It is a happy number.

7833228 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×78332282 = 122718921799968, which contains 22 as substring.

Its product of digits (16128) is a multiple of the sum of its prime divisors (504).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23076 + ... + 23412.

It is an arithmetic number, because the mean of its divisors is an integer number (414050).

Almost surely, 27833228 is an apocalyptic number.

7833228 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 7833228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9937200).

7833228 is an abundant number, since it is smaller than the sum of its proper divisors (12041172).

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

7833228 is a wasteful number, since it uses less digits than its factorization.

7833228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 504 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 7833228 is about 2798.7904530350. The cubic root of 7833228 is about 198.6004626534.

The spelling of 7833228 in words is "seven million, eight hundred thirty-three thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 149 156 298 337 447 596 674 894 1011 1348 1788 1937 2022 3874 4044 4381 5811 7748 8762 11622 13143 17524 23244 26286 50213 52572 100426 150639 200852 301278 602556 652769 1305538 1958307 2611076 3916614 7833228