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67713790 = 256771379
BaseRepresentation
bin1000000100100…
…11101011111110
311201102012212011
410002103223332
5114313320130
610415201434
71451362204
oct402235376
9151365764
1067713790
113524a411
121a81627a
131104b041
148dc9074
155e2852a
hex4093afe

67713790 has 8 divisors (see below), whose sum is σ = 121884840. Its totient is φ = 27085512.

The previous prime is 67713707. The next prime is 67713791. The reversal of 67713790 is 9731776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67713791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3385680 + ... + 3385699.

It is an arithmetic number, because the mean of its divisors is an integer number (15235605).

Almost surely, 267713790 is an apocalyptic number.

67713790 is a deficient number, since it is larger than the sum of its proper divisors (54171050).

67713790 is a wasteful number, since it uses less digits than its factorization.

67713790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6771386.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 67713790 is about 8228.8389217435. The cubic root of 67713790 is about 407.5920526732.

The spelling of 67713790 in words is "sixty-seven million, seven hundred thirteen thousand, seven hundred ninety".

Divisors: 1 2 5 10 6771379 13542758 33856895 67713790