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68571361 = 194398221
BaseRepresentation
bin1000001011001…
…01000011100001
311210000210020001
410011211003201
5120023240421
610445420001
71461563335
oct405450341
9153023201
1068571361
1135785751
121ab6a601
131128b491
14916d7c5
156047691
hex41650e1

68571361 has 8 divisors (see below), whose sum is σ = 72353600. Its totient is φ = 64806480.

The previous prime is 68571359. The next prime is 68571379. The reversal of 68571361 is 16317586.

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

It is a cyclic number.

It is not a de Polignac number, because 68571361 - 21 = 68571359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68571361.

It is not an unprimeable number, because it can be changed into a prime (68571301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4231 + ... + 12451.

It is an arithmetic number, because the mean of its divisors is an integer number (9044200).

Almost surely, 268571361 is an apocalyptic number.

It is an amenable number.

68571361 is a deficient number, since it is larger than the sum of its proper divisors (3782239).

68571361 is a wasteful number, since it uses less digits than its factorization.

68571361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8679.

The product of its digits is 30240, while the sum is 37.

The square root of 68571361 is about 8280.7826320946. The cubic root of 68571361 is about 409.3055087919.

The spelling of 68571361 in words is "sixty-eight million, five hundred seventy-one thousand, three hundred sixty-one".

Divisors: 1 19 439 8221 8341 156199 3609019 68571361