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228650460 = 22353810841
BaseRepresentation
bin11011010000011…
…10110111011100
3120221020122110120
431220032313130
5432013303320
634404434540
75444332263
oct1550166734
9527218416
10228650460
11108081525
12646a8a50
13384a8c3c
142251d5da
1515118440
hexda0eddc

228650460 has 24 divisors (see below), whose sum is σ = 640221456. Its totient is φ = 60973440.

The previous prime is 228650449. The next prime is 228650473. The reversal of 228650460 is 64056822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1905361 + ... + 1905480.

It is an arithmetic number, because the mean of its divisors is an integer number (26675894).

Almost surely, 2228650460 is an apocalyptic number.

228650460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228650460 is an abundant number, since it is smaller than the sum of its proper divisors (411570996).

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

228650460 is a wasteful number, since it uses less digits than its factorization.

228650460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810853 (or 3810851 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 228650460 is about 15121.1924132986. The cubic root of 228650460 is about 611.4918782114.

The spelling of 228650460 in words is "two hundred twenty-eight million, six hundred fifty thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3810841 7621682 11432523 15243364 19054205 22865046 38108410 45730092 57162615 76216820 114325230 228650460