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228963500 = 2253617507
BaseRepresentation
bin11011010010110…
…11010010101100
3120221211112212122
431221123102230
5432103313000
634415252112
75450105033
oct1551332254
9527745778
10228963500
11108275737
126481a038
133858857c
14225a171a
151517b085
hexda5b4ac

228963500 has 48 divisors (see below), whose sum is σ = 508321632. Its totient is φ = 90072000.

The previous prime is 228963499. The next prime is 228963521. The reversal of 228963500 is 5369822.

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, 26747 + ... + 34253.

It is an arithmetic number, because the mean of its divisors is an integer number (10590034).

Almost surely, 2228963500 is an apocalyptic number.

228963500 is a gapful number since it is divisible by the number (20) 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 228963500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254160816).

228963500 is an abundant number, since it is smaller than the sum of its proper divisors (279358132).

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

228963500 is a wasteful number, since it uses less digits than its factorization.

228963500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7587 (or 7575 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 228963500 is about 15131.5399084165. The cubic root of 228963500 is about 611.7708107024.

The spelling of 228963500 in words is "two hundred twenty-eight million, nine hundred sixty-three thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 61 100 122 125 244 250 305 500 610 1220 1525 3050 6100 7507 7625 15014 15250 30028 30500 37535 75070 150140 187675 375350 457927 750700 915854 938375 1831708 1876750 2289635 3753500 4579270 9158540 11448175 22896350 45792700 57240875 114481750 228963500