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486157 = 7199349
BaseRepresentation
bin1110110101100001101
3220200212211
41312230031
5111024112
614230421
74063240
oct1665415
9820784
10486157
11302291
121b5411
13140389
14c9257
15990a7
hex76b0d

486157 has 8 divisors (see below), whose sum is σ = 560000. Its totient is φ = 413424.

The previous prime is 486139. The next prime is 486163. The reversal of 486157 is 751684.

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

It is a 4-Lehmer number, since φ(486157) divides (486157-1)4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-486157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486757) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1219 + ... + 1567.

It is an arithmetic number, because the mean of its divisors is an integer number (70000).

2486157 is an apocalyptic number.

486157 is the 349-th decagonal number.

It is an amenable number.

486157 is a deficient number, since it is larger than the sum of its proper divisors (73843).

486157 is a wasteful number, since it uses less digits than its factorization.

486157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555.

The product of its digits is 6720, while the sum is 31.

The square root of 486157 is about 697.2495966295. The cubic root of 486157 is about 78.6307070958.

The spelling of 486157 in words is "four hundred eighty-six thousand, one hundred fifty-seven".

Divisors: 1 7 199 349 1393 2443 69451 486157