Search a number
-
+
70105044678 = 2311684174113
BaseRepresentation
bin100000101001010010…
…1100001011011000110
320200221202000021002020
41001102211201123012
52122033342412203
652112242224010
75031161022234
oct1012245413306
9220852007066
1070105044678
1127805519759
1211706055006
1367c3136376
14357095b954
151c54960153
hex10529616c6

70105044678 has 8 divisors (see below), whose sum is σ = 140210089368. Its totient is φ = 23368348224.

The previous prime is 70105044671. The next prime is 70105044689. The reversal of 70105044678 is 87644050107.

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

70105044678 is an admirable number.

It is a super-2 number, since 2×701050446782 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70105044671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5842087051 + ... + 5842087062.

It is an arithmetic number, because the mean of its divisors is an integer number (17526261171).

Almost surely, 270105044678 is an apocalyptic number.

70105044678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70105044678 is a wasteful number, since it uses less digits than its factorization.

70105044678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11684174118.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 70105044678 in words is "seventy billion, one hundred five million, forty-four thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 11684174113 23368348226 35052522339 70105044678