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228947796 = 223572111923
BaseRepresentation
bin11011010010101…
…11011101010100
3120221210202100000
431221113131110
5432102312141
634415051300
75450011200
oct1551273524
9527722300
10228947796
11108264960
1264810b30
133858138c
1422599b00
15151765b6
hexda57754

228947796 has 432 divisors, whose sum is σ = 836559360. Its totient is φ = 53887680.

The previous prime is 228947729. The next prime is 228947801. The reversal of 228947796 is 697749822.

228947796 is a `hidden beast` number, since 2 + 2 + 89 + 477 + 96 = 666.

It is a super-3 number, since 3×2289477963 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 9954241 + ... + 9954263.

It is an arithmetic number, because the mean of its divisors is an integer number (1936480).

Almost surely, 2228947796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228947796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (418279680).

228947796 is an abundant number, since it is smaller than the sum of its proper divisors (607611564).

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

228947796 is a wasteful number, since it uses less digits than its factorization.

228947796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 65 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 228947796 is about 15131.0209833970. The cubic root of 228947796 is about 611.7568238028.

The spelling of 228947796 in words is "two hundred twenty-eight million, nine hundred forty-seven thousand, seven hundred ninety-six".