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3103000320 = 28357241479
BaseRepresentation
bin1011100011110100…
…0000011100000000
322000020211202012210
42320331000130000
522323332002240
61231524022120
7136616032110
oct27075003400
98006752183
103103000320
111352621082
12727231940
133a5b38884
14216179040
1513263c780
hexb8f40700

3103000320 has 288 divisors, whose sum is σ = 11396689920. Its totient is φ = 704839680.

The previous prime is 3103000297. The next prime is 3103000343. The reversal of 3103000320 is 230003013.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3103000297) and next prime (3103000343).

It is a super-2 number, since 2×31030003202 = 19257221971840204800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 3103000296 and 3103000305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6477841 + ... + 6478319.

It is an arithmetic number, because the mean of its divisors is an integer number (39571840).

Almost surely, 23103000320 is an apocalyptic number.

3103000320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3103000320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5698344960).

3103000320 is an abundant number, since it is smaller than the sum of its proper divisors (8293689600).

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

3103000320 is a wasteful number, since it uses less digits than its factorization.

3103000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 3103000320 is about 55704.5807811171. The cubic root of 3103000320 is about 1458.5699890732.

Adding to 3103000320 its reverse (230003013), we get a palindrome (3333003333).

The spelling of 3103000320 in words is "three billion, one hundred three million, three hundred twenty", and thus it is an aban number.