Search a number
-
+
10131845685 = 3513415312511
BaseRepresentation
bin10010110111110011…
…11011001000110101
3222011002212002101220
421123321323020311
5131222223030220
64353212340553
7506035160463
oct113371731065
928132762356
1010131845685
11432a187695
121b69174759
13c56101080
146c1883833
153e4753540
hex25be7b235

10131845685 has 32 divisors (see below), whose sum is σ = 17463548928. Its totient is φ = 4986385920.

The previous prime is 10131845651. The next prime is 10131845687. The reversal of 10131845685 is 58654813101.

It is not a de Polignac number, because 10131845685 - 28 = 10131845429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131845687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 803580 + ... + 816090.

It is an arithmetic number, because the mean of its divisors is an integer number (545735904).

Almost surely, 210131845685 is an apocalyptic number.

10131845685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10131845685 is a deficient number, since it is larger than the sum of its proper divisors (7331703243).

10131845685 is a wasteful number, since it uses less digits than its factorization.

10131845685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16685.

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 10131845685 in words is "ten billion, one hundred thirty-one million, eight hundred forty-five thousand, six hundred eighty-five".

Divisors: 1 3 5 13 15 39 65 195 4153 12459 12511 20765 37533 53989 62295 62555 161967 162643 187665 269945 487929 809835 813215 2439645 51958183 155874549 259790915 675456379 779372745 2026369137 3377281895 10131845685