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228792916 = 22116537963
BaseRepresentation
bin11011010001100…
…01101001010100
3120221111212212201
431220301221110
5432032333131
634411454244
75445464512
oct1550615124
9527455781
10228792916
11108169560
1264757384
1338528a31
14225594b2
1515145761
hexda31a54

228792916 has 24 divisors (see below), whose sum is σ = 437510304. Its totient is φ = 103824480.

The previous prime is 228792911. The next prime is 228792929. The reversal of 228792916 is 619297822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228792911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24751 + ... + 32713.

It is an arithmetic number, because the mean of its divisors is an integer number (18229596).

Almost surely, 2228792916 is an apocalyptic number.

It is an amenable number.

228792916 is a deficient number, since it is larger than the sum of its proper divisors (208717388).

228792916 is a wasteful number, since it uses less digits than its factorization.

228792916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8631 (or 8629 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 228792916 is about 15125.9021549129. The cubic root of 228792916 is about 611.6188443565.

The spelling of 228792916 in words is "two hundred twenty-eight million, seven hundred ninety-two thousand, nine hundred sixteen".