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228868032 = 2632351827
BaseRepresentation
bin11011010010000…
…11111111000000
3120221122200220210
431221003333000
5432042234112
634413234120
75446226511
oct1551037700
9527580823
10228868032
1110820aa38
1264792940
1338553c93
1422578a08
151515cb3c
hexda43fc0

228868032 has 56 divisors (see below), whose sum is σ = 631886976. Its totient is φ = 72971008.

The previous prime is 228868007. The next prime is 228868033. The reversal of 228868032 is 230868822.

228868032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228868033) 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, 21498 + ... + 30329.

It is an arithmetic number, because the mean of its divisors is an integer number (11283696).

Almost surely, 2228868032 is an apocalyptic number.

It is an amenable number.

228868032 is an abundant number, since it is smaller than the sum of its proper divisors (403018944).

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

228868032 is a wasteful number, since it uses less digits than its factorization.

228868032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51865 (or 51855 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 228868032 is about 15128.3849765928. The cubic root of 228868032 is about 611.6857714493.

The spelling of 228868032 in words is "two hundred twenty-eight million, eight hundred sixty-eight thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 64 69 92 96 138 184 192 276 368 552 736 1104 1472 2208 4416 51827 103654 155481 207308 310962 414616 621924 829232 1192021 1243848 1658464 2384042 2487696 3316928 3576063 4768084 4975392 7152126 9536168 9950784 14304252 19072336 28608504 38144672 57217008 76289344 114434016 228868032