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406254228 = 223373832389
BaseRepresentation
bin11000001101101…
…111001010010100
31001022102212000220
4120031233022110
51313000113403
6104151234340
713032050442
oct3015571224
91038385026
10406254228
111993578a6
12b40789b0
1366221223
143bd51b92
15259eb953
hex1836f294

406254228 has 48 divisors (see below), whose sum is σ = 976496640. Its totient is φ = 131359104.

The previous prime is 406254223. The next prime is 406254307. The reversal of 406254228 is 822452604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406254223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168858 + ... + 171246.

It is an arithmetic number, because the mean of its divisors is an integer number (20343680).

Almost surely, 2406254228 is an apocalyptic number.

It is an amenable number.

406254228 is an abundant number, since it is smaller than the sum of its proper divisors (570242412).

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

406254228 is a wasteful number, since it uses less digits than its factorization.

406254228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 406254228 is about 20155.7492542451. The cubic root of 406254228 is about 740.6265864126.

The spelling of 406254228 in words is "four hundred six million, two hundred fifty-four thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 383 444 766 1149 1532 2298 2389 4596 4778 7167 9556 14171 14334 28342 28668 42513 56684 85026 88393 170052 176786 265179 353572 530358 914987 1060716 1829974 2744961 3659948 5489922 10979844 33854519 67709038 101563557 135418076 203127114 406254228