Search a number
-
+
68122625 = 532712011
BaseRepresentation
bin1000000111101…
…11100000000001
311202011222200012
410003313200001
5114414411000
610432034305
71455014144
oct403674001
9152158605
1068122625
11354a959a
121a992995
131116215c
14909405b
155ea9735
hex40f7801

68122625 has 16 divisors (see below), whose sum is σ = 85373184. Its totient is φ = 54270000.

The previous prime is 68122609. The next prime is 68122627. The reversal of 68122625 is 52622186.

It is not a de Polignac number, because 68122625 - 24 = 68122609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68122591 and 68122600.

It is not an unprimeable number, because it can be changed into a prime (68122627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32870 + ... + 34880.

It is an arithmetic number, because the mean of its divisors is an integer number (5335824).

Almost surely, 268122625 is an apocalyptic number.

It is an amenable number.

68122625 is a deficient number, since it is larger than the sum of its proper divisors (17250559).

68122625 is a wasteful number, since it uses less digits than its factorization.

68122625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297 (or 2287 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 68122625 is about 8253.6431350041. The cubic root of 68122625 is about 408.4107123477.

The spelling of 68122625 in words is "sixty-eight million, one hundred twenty-two thousand, six hundred twenty-five".

Divisors: 1 5 25 125 271 1355 2011 6775 10055 33875 50275 251375 544981 2724905 13624525 68122625