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67683984 = 2439471489
BaseRepresentation
bin1000000100011…
…00011010010000
311201100200222020
410002030122100
5114311341414
610414411440
71451206254
oct402143220
9151320866
1067683984
1135229a85
121a800b80
131103a5c4
148dbc264
155e1e7a9
hex408c690

67683984 has 40 divisors (see below), whose sum is σ = 175152480. Its totient is φ = 22522368.

The previous prime is 67683977. The next prime is 67683991. The reversal of 67683984 is 48938676.

It is an interprime number because it is at equal distance from previous prime (67683977) and next prime (67683991).

It is a super-2 number, since 2×676839842 = 9162243380224512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44712 + ... + 46200.

It is an arithmetic number, because the mean of its divisors is an integer number (4378812).

Almost surely, 267683984 is an apocalyptic number.

It is an amenable number.

67683984 is an abundant number, since it is smaller than the sum of its proper divisors (107468496).

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

67683984 is a wasteful number, since it uses less digits than its factorization.

67683984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447 (or 2441 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 67683984 is about 8227.0276528039. The cubic root of 67683984 is about 407.5322397868.

The spelling of 67683984 in words is "sixty-seven million, six hundred eighty-three thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 947 1489 1894 2841 2978 3788 4467 5682 5956 7576 8934 11364 11912 15152 17868 22728 23824 35736 45456 71472 1410083 2820166 4230249 5640332 8460498 11280664 16920996 22561328 33841992 67683984