Search a number
-
+
68415249007 = 789109815809
BaseRepresentation
bin111111101101110111…
…011101101001101111
320112120222100202012101
4333231313131221233
52110103300432012
651232440115531
74641252010240
oct775567355157
9215528322171
1068415249007
1127018696206
1211314165ba7
1365b4020681
143450370cc7
151ba6424d57
hexfedddda6f

68415249007 has 8 divisors (see below), whose sum is σ = 79067383200. Its totient is φ = 57982746624.

The previous prime is 68415248939. The next prime is 68415249031. The reversal of 68415249007 is 70094251486.

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 68415249007 - 223 = 68406860399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68415249037) 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, 54907282 + ... + 54908527.

It is an arithmetic number, because the mean of its divisors is an integer number (9883422900).

Almost surely, 268415249007 is an apocalyptic number.

68415249007 is a deficient number, since it is larger than the sum of its proper divisors (10652134193).

68415249007 is a wasteful number, since it uses less digits than its factorization.

68415249007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109815905.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 68415249007 in words is "sixty-eight billion, four hundred fifteen million, two hundred forty-nine thousand, seven".

Divisors: 1 7 89 623 109815809 768710663 9773607001 68415249007