Search a number
-
+
8103711040 = 26525324097
BaseRepresentation
bin1111000110000010…
…01101000101000000
3202220202120011200221
413203001031011000
5113044022223130
63420042352424
7404550256465
oct74301150500
922822504627
108103711040
113489374057
1216a1abb714
139c1b85ab9
1456c38366c
1532668487a
hex1e304d140

8103711040 has 28 divisors (see below), whose sum is σ = 19296962676. Its totient is φ = 3241484288.

The previous prime is 8103710941. The next prime is 8103711047. The reversal of 8103711040 is 401173018.

It can be written as a sum of positive squares in 2 ways, for example, as 6095237184 + 2008473856 = 78072^2 + 44816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8103710996 and 8103711014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8103711047) 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, 12661729 + ... + 12662368.

Almost surely, 28103711040 is an apocalyptic number.

8103711040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8103711040 is an abundant number, since it is smaller than the sum of its proper divisors (11193251636).

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

8103711040 is a wasteful number, since it uses less digits than its factorization.

8103711040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25324114 (or 25324104 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 8103711040 is about 90020.6145280069. The cubic root of 8103711040 is about 2008.6055061917.

Adding to 8103711040 its reverse (401173018), we get a palindrome (8504884058).

The spelling of 8103711040 in words is "eight billion, one hundred three million, seven hundred eleven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 25324097 50648194 101296388 126620485 202592776 253240970 405185552 506481940 810371104 1012963880 1620742208 2025927760 4051855520 8103711040