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67422228 = 22383139487
BaseRepresentation
bin1000000010011…
…00100000010100
311200212101220120
410001030200110
5114230002403
610405031540
71446036156
oct401144024
9150771816
1067422228
1135070355
121a6b55b0
1310c78413
148d50ad6
155dbbe53
hex404c814

67422228 has 48 divisors (see below), whose sum is σ = 160688640. Its totient is φ = 21998304.

The previous prime is 67422227. The next prime is 67422281. The reversal of 67422228 is 82222476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67422227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138201 + ... + 138687.

It is an arithmetic number, because the mean of its divisors is an integer number (3347680).

Almost surely, 267422228 is an apocalyptic number.

It is an amenable number.

67422228 is an abundant number, since it is smaller than the sum of its proper divisors (93266412).

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

67422228 is a wasteful number, since it uses less digits than its factorization.

67422228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 714 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 67422228 is about 8211.1039452683. The cubic root of 67422228 is about 407.0062078108.

The spelling of 67422228 in words is "sixty-seven million, four hundred twenty-two thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 83 139 166 249 278 332 417 487 498 556 834 974 996 1461 1668 1948 2922 5844 11537 23074 34611 40421 46148 67693 69222 80842 121263 135386 138444 161684 203079 242526 270772 406158 485052 812316 5618519 11237038 16855557 22474076 33711114 67422228