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67656485 = 5134392371
BaseRepresentation
bin1000000100001…
…01101100100101
311201022022020202
410002011230211
5114310001420
610414040245
71451033141
oct402055445
9151268222
1067656485
1135210356
121a7a9085
131102ac30
148db2221
155e16575
hex4085b25

67656485 has 16 divisors (see below), whose sum is σ = 87669120. Its totient is φ = 49826880.

The previous prime is 67656431. The next prime is 67656509. The reversal of 67656485 is 58465676.

It is not a de Polignac number, because 67656485 - 214 = 67640101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27350 + ... + 29720.

It is an arithmetic number, because the mean of its divisors is an integer number (5479320).

Almost surely, 267656485 is an apocalyptic number.

67656485 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

67656485 is a deficient number, since it is larger than the sum of its proper divisors (20012635).

67656485 is a wasteful number, since it uses less digits than its factorization.

67656485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828.

The product of its digits is 1209600, while the sum is 47.

The square root of 67656485 is about 8225.3562232891. The cubic root of 67656485 is about 407.4770408734.

The spelling of 67656485 in words is "sixty-seven million, six hundred fifty-six thousand, four hundred eighty-five".

Divisors: 1 5 13 65 439 2195 2371 5707 11855 28535 30823 154115 1040869 5204345 13531297 67656485