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67683955 = 513536791
BaseRepresentation
bin1000000100011…
…00011001110011
311201100200221011
410002030121303
5114311341310
610414411351
71451206213
oct402143163
9151320834
1067683955
1135229a59
121a800b57
131103a5a1
148dbc243
155e1e78a
hex408c673

67683955 has 4 divisors (see below), whose sum is σ = 81220752. Its totient is φ = 54147160.

The previous prime is 67683929. The next prime is 67683971. The reversal of 67683955 is 55938676.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 67683955 - 25 = 67683923 is a prime.

It is a super-2 number, since 2×676839552 = 9162235528884050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67683899 and 67683908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6768391 + ... + 6768400.

It is an arithmetic number, because the mean of its divisors is an integer number (20305188).

Almost surely, 267683955 is an apocalyptic number.

67683955 is a deficient number, since it is larger than the sum of its proper divisors (13536797).

67683955 is a wasteful number, since it uses less digits than its factorization.

67683955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13536796.

The product of its digits is 1360800, while the sum is 49.

The square root of 67683955 is about 8227.0258903203. The cubic root of 67683955 is about 407.5321815828.

The spelling of 67683955 in words is "sixty-seven million, six hundred eighty-three thousand, nine hundred fifty-five".

Divisors: 1 5 13536791 67683955