Search a number
-
+
74886105487 = 197001562973
BaseRepresentation
bin100010110111110001…
…1110100100110001111
321011021221102022112111
41011233203310212033
52211331320333422
654222513044451
75260514252104
oct1055743644617
9234257368474
1074886105487
1129839288486
121261b256727
1370a580932b
1438a590aaab
151e3456aa77
hex116f8f498f

74886105487 has 8 divisors (see below), whose sum is σ = 78838878960. Its totient is φ = 70934472000.

The previous prime is 74886105439. The next prime is 74886105499. The reversal of 74886105487 is 78450168847.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-74886105487 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 (74886105887) 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, 148468 + ... + 414505.

It is an arithmetic number, because the mean of its divisors is an integer number (9854859870).

Almost surely, 274886105487 is an apocalyptic number.

74886105487 is a deficient number, since it is larger than the sum of its proper divisors (3952773473).

74886105487 is a wasteful number, since it uses less digits than its factorization.

74886105487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569993.

The product of its (nonzero) digits is 12042240, while the sum is 58.

The spelling of 74886105487 in words is "seventy-four billion, eight hundred eighty-six million, one hundred five thousand, four hundred eighty-seven".

Divisors: 1 19 7001 133019 562973 10696487 3941373973 74886105487