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228156753 = 31124347311
BaseRepresentation
bin11011001100101…
…10010101010001
3120220022120020010
431212112111101
5431402004003
634350105133
75440205016
oct1546262521
9526276203
10228156753
11107874600
12644ab1a9
13383652c6
142243170d
151506c003
hexd996551

228156753 has 48 divisors (see below), whose sum is σ = 350558208. Its totient is φ = 131762400.

The previous prime is 228156749. The next prime is 228156781. The reversal of 228156753 is 357651822.

228156753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228156753 - 22 = 228156749 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (228156703) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 733468 + ... + 733778.

It is an arithmetic number, because the mean of its divisors is an integer number (7303296).

Almost surely, 2228156753 is an apocalyptic number.

It is an amenable number.

228156753 is a deficient number, since it is larger than the sum of its proper divisors (122401455).

228156753 is a wasteful number, since it uses less digits than its factorization.

228156753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 415 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 228156753 is about 15104.8585892090. The cubic root of 228156753 is about 611.0514455822.

The spelling of 228156753 in words is "two hundred twenty-eight million, one hundred fifty-six thousand, seven hundred fifty-three".

Divisors: 1 3 11 33 43 47 121 129 141 311 363 473 517 933 1419 1551 2021 3421 5203 5687 6063 10263 13373 14617 15609 17061 22231 37631 40119 43851 66693 112893 147103 160787 244541 441309 482361 628531 733623 1618133 1768657 1885593 4854399 5305971 6913841 20741523 76052251 228156753