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67385376 = 2532832819
BaseRepresentation
bin1000000010000…
…11100000100000
311200210112100200
410001003200200
5114222313001
610404145200
71445523552
oct401034040
9150715320
1067385376
11350456a3
121a698200
1310c64706
148d414d2
155db1086
hex4043820

67385376 has 72 divisors (see below), whose sum is σ = 194004720. Its totient is φ = 22183296.

The previous prime is 67385369. The next prime is 67385387. The reversal of 67385376 is 67358376.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×673853762 = 9081577797322752, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22495 + ... + 25313.

It is an arithmetic number, because the mean of its divisors is an integer number (2694510).

Almost surely, 267385376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67385376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97002360).

67385376 is an abundant number, since it is smaller than the sum of its proper divisors (126619344).

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

67385376 is a wasteful number, since it uses less digits than its factorization.

67385376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918 (or 2907 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 67385376 is about 8208.8596041107. The cubic root of 67385376 is about 406.9320397568.

Subtracting from 67385376 its reverse (67358376), we obtain a cube (27000 = 303).

The spelling of 67385376 in words is "sixty-seven million, three hundred eighty-five thousand, three hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 83 96 144 166 249 288 332 498 664 747 996 1328 1494 1992 2656 2819 2988 3984 5638 5976 7968 8457 11276 11952 16914 22552 23904 25371 33828 45104 50742 67656 90208 101484 135312 202968 233977 270624 405936 467954 701931 811872 935908 1403862 1871816 2105793 2807724 3743632 4211586 5615448 7487264 8423172 11230896 16846344 22461792 33692688 67385376