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227131424 = 25131732117
BaseRepresentation
bin11011000100111…
…00000000100000
3120211101110201222
431202130000200
5431121201144
634312114212
75425404512
oct1542340040
9524343658
10227131424
11107234223
1264095968
13380966c0
1422245bb2
1514e182ee
hexd89c020

227131424 has 48 divisors (see below), whose sum is σ = 509905368. Its totient is φ = 98660352.

The previous prime is 227131423. The next prime is 227131439. The reversal of 227131424 is 424131722.

It can be written as a sum of positive squares in 4 ways, for example, as 116208400 + 110923024 = 10780^2 + 10532^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 227131393 and 227131402.

It is not an unprimeable number, because it can be changed into a prime (227131423) 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, 8987 + ... + 23130.

Almost surely, 2227131424 is an apocalyptic number.

It is an amenable number.

227131424 is an abundant number, since it is smaller than the sum of its proper divisors (282773944).

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

227131424 is a wasteful number, since it uses less digits than its factorization.

227131424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32157 (or 32149 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 227131424 is about 15070.8800008493. The cubic root of 227131424 is about 610.1347225502.

The spelling of 227131424 in words is "two hundred twenty-seven million, one hundred thirty-one thousand, four hundred twenty-four".

Divisors: 1 2 4 8 13 16 17 26 32 34 52 68 104 136 208 221 272 416 442 544 884 1768 3536 7072 32117 64234 128468 256936 417521 513872 545989 835042 1027744 1091978 1670084 2183956 3340168 4367912 6680336 7097857 8735824 13360672 14195714 17471648 28391428 56782856 113565712 227131424