Search a number
-
+
86725801 = 233770687
BaseRepresentation
bin1010010101101…
…01010010101001
320001012010102201
411022311102221
5134200211201
612334500201
72102104621
oct512652251
9201163381
1086725801
1144a55418
1225064661
1314c76856
14b737881
157931801
hex52b54a9

86725801 has 4 divisors (see below), whose sum is σ = 90496512. Its totient is φ = 82955092.

The previous prime is 86725777. The next prime is 86725813. The reversal of 86725801 is 10852768.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86725801 - 27 = 86725673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86725831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1885321 + ... + 1885366.

It is an arithmetic number, because the mean of its divisors is an integer number (22624128).

Almost surely, 286725801 is an apocalyptic number.

It is an amenable number.

86725801 is a deficient number, since it is larger than the sum of its proper divisors (3770711).

86725801 is a wasteful number, since it uses less digits than its factorization.

86725801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770710.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 86725801 is about 9312.6688441069. The cubic root of 86725801 is about 442.6387592964.

The spelling of 86725801 in words is "eighty-six million, seven hundred twenty-five thousand, eight hundred one".

Divisors: 1 23 3770687 86725801