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228032472 = 2339501353
BaseRepresentation
bin11011001011101…
…11111111011000
3120220002020202010
431211313333120
5431334014342
634343305520
75436146463
oct1545677730
9526066663
10228032472
1110779a198
126444b2a0
1338320875
14223dc2da
151504529c
hexd977fd8

228032472 has 16 divisors (see below), whose sum is σ = 570081240. Its totient is φ = 76010816.

The previous prime is 228032461. The next prime is 228032479. The reversal of 228032472 is 274230822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228032479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4750653 + ... + 4750700.

Almost surely, 2228032472 is an apocalyptic number.

It is an amenable number.

228032472 is an abundant number, since it is smaller than the sum of its proper divisors (342048768).

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

228032472 is a wasteful number, since it uses less digits than its factorization.

228032472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9501362 (or 9501358 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 228032472 is about 15100.7440876269. The cubic root of 228032472 is about 610.9404752706.

The spelling of 228032472 in words is "two hundred twenty-eight million, thirty-two thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 9501353 19002706 28504059 38005412 57008118 76010824 114016236 228032472