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228130750 = 253912523
BaseRepresentation
bin11011001100011…
…11111110111110
3120220021020120001
431212033332332
5431400141000
634345344514
75440036141
oct1546177676
9526236501
10228130750
11107857011
126449813a
1338356513
1422426058
151506446a
hexd98ffbe

228130750 has 16 divisors (see below), whose sum is σ = 427061232. Its totient is φ = 91252200.

The previous prime is 228130723. The next prime is 228130751. The reversal of 228130750 is 57031822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228130751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456012 + ... + 456511.

It is an arithmetic number, because the mean of its divisors is an integer number (26691327).

Almost surely, 2228130750 is an apocalyptic number.

228130750 is a deficient number, since it is larger than the sum of its proper divisors (198930482).

228130750 is an equidigital number, since it uses as much as digits as its factorization.

228130750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912540 (or 912530 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 228130750 is about 15103.9978151481. The cubic root of 228130750 is about 611.0282308783.

The spelling of 228130750 in words is "two hundred twenty-eight million, one hundred thirty thousand, seven hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 912523 1825046 4562615 9125230 22813075 45626150 114065375 228130750