Search a number
-
+
82315013 = 1131241393
BaseRepresentation
bin1001110100000…
…00011100000101
312201220000222012
410322000130011
5132033040023
612100144005
72016444314
oct472003405
9181800865
1082315013
1142512540
1223698005
1314091011
14ad0a27b
15735e978
hex4e80705

82315013 has 8 divisors (see below), whose sum is σ = 92695296. Its totient is φ = 72417600.

The previous prime is 82314997. The next prime is 82315033. The reversal of 82315013 is 31051328.

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 82315013 - 24 = 82314997 is a prime.

It is a super-2 number, since 2×823150132 = 13551522730380338, which contains 22 as substring.

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 82315013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82315033) 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, 120356 + ... + 121037.

It is an arithmetic number, because the mean of its divisors is an integer number (11586912).

Almost surely, 282315013 is an apocalyptic number.

It is an amenable number.

82315013 is a deficient number, since it is larger than the sum of its proper divisors (10380283).

82315013 is a wasteful number, since it uses less digits than its factorization.

82315013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241435.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 82315013 is about 9072.7621483207. The cubic root of 82315013 is about 435.0037662069.

The spelling of 82315013 in words is "eighty-two million, three hundred fifteen thousand, thirteen".

Divisors: 1 11 31 341 241393 2655323 7483183 82315013