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67412228 = 22131931271
BaseRepresentation
bin1000000010010…
…10000100000100
311200211220012012
410001022010010
5114224142403
610404513352
71445665052
oct401120404
9150756165
1067412228
1135063894
121a6ab858
1310c739c0
148d4b1d2
155db8ed8
hex404a104

67412228 has 72 divisors (see below), whose sum is σ = 140132160. Its totient is φ = 28123200.

The previous prime is 67412227. The next prime is 67412239. The reversal of 67412228 is 82221476.

It is a junction number, because it is equal to n+sod(n) for n = 67412194 and 67412203.

It is not an unprimeable number, because it can be changed into a prime (67412221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 949433 + ... + 949503.

It is an arithmetic number, because the mean of its divisors is an integer number (1946280).

Almost surely, 267412228 is an apocalyptic number.

It is an amenable number.

67412228 is an abundant number, since it is smaller than the sum of its proper divisors (72719932).

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

67412228 is a wasteful number, since it uses less digits than its factorization.

67412228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 136 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 67412228 is about 8210.4949911683. The cubic root of 67412228 is about 406.9860845595.

The spelling of 67412228 in words is "sixty-seven million, four hundred twelve thousand, two hundred twenty-eight".

Divisors: 1 2 4 13 19 26 31 38 52 62 71 76 124 142 247 284 403 494 589 806 923 961 988 1178 1349 1612 1846 1922 2201 2356 2698 3692 3844 4402 5396 7657 8804 12493 15314 17537 18259 24986 28613 30628 35074 36518 41819 49972 57226 68231 70148 73036 83638 114452 136462 167276 237367 272924 474734 543647 887003 949468 1087294 1296389 1774006 2174588 2592778 3548012 5185556 16853057 33706114 67412228