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67057344 = 2632472477
BaseRepresentation
bin1111111111001…
…1011011000000
311200011212101100
43333303123000
5114131313334
610353134400
71442656314
oct377633300
9150155340
1067057344
11349411a2
121a55a400
1310b7b303
148c97b44
155d48c99
hex3ff36c0

67057344 has 84 divisors (see below), whose sum is σ = 196376544. Its totient is φ = 21868032.

The previous prime is 67057313. The next prime is 67057363. The reversal of 67057344 is 44375076.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 67057299 and 67057308.

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, 25834 + ... + 28310.

It is an arithmetic number, because the mean of its divisors is an integer number (2337816).

Almost surely, 267057344 is an apocalyptic number.

67057344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67057344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98188272).

67057344 is an abundant number, since it is smaller than the sum of its proper divisors (129319200).

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

67057344 is a wasteful number, since it uses less digits than its factorization.

67057344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542 (or 2529 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 67057344 is about 8188.8548649979. The cubic root of 67057344 is about 406.2706503428.

The spelling of 67057344 in words is "sixty-seven million, fifty-seven thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 47 48 64 72 94 96 141 144 188 192 282 288 376 423 564 576 752 846 1128 1504 1692 2256 2477 3008 3384 4512 4954 6768 7431 9024 9908 13536 14862 19816 22293 27072 29724 39632 44586 59448 79264 89172 116419 118896 158528 178344 232838 237792 349257 356688 465676 475584 698514 713376 931352 1047771 1397028 1426752 1862704 2095542 2794056 3725408 4191084 5588112 7450816 8382168 11176224 16764336 22352448 33528672 67057344