Search a number
-
+
3103131828 = 2231791444661
BaseRepresentation
bin1011100011110110…
…0000100010110100
322000021002102121110
42320331200202310
522323400204303
61231530515020
7136620120366
oct27075404264
98007072543
103103131828
111352700965
12727295a70
133a5b836a4
142161b0d36
15132666703
hexb8f608b4

3103131828 has 24 divisors (see below), whose sum is σ = 7281096480. Its totient is φ = 1028597920.

The previous prime is 3103131827. The next prime is 3103131833. The reversal of 3103131828 is 8281313013.

It is a junction number, because it is equal to n+sod(n) for n = 3103131795 and 3103131804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103131827) 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, 720183 + ... + 724478.

It is an arithmetic number, because the mean of its divisors is an integer number (303379020).

Almost surely, 23103131828 is an apocalyptic number.

It is an amenable number.

3103131828 is an abundant number, since it is smaller than the sum of its proper divisors (4177964652).

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

3103131828 is a wasteful number, since it uses less digits than its factorization.

3103131828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444847 (or 1444845 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 3103131828 is about 55705.7611742269. The cubic root of 3103131828 is about 1458.5905939602.

The spelling of 3103131828 in words is "three billion, one hundred three million, one hundred thirty-one thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 179 358 537 716 1074 2148 1444661 2889322 4333983 5778644 8667966 17335932 258594319 517188638 775782957 1034377276 1551565914 3103131828