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3130308 = 223289977
BaseRepresentation
bin1011111100001111000100
312220000222100
423330033010
51300132213
6151032100
735415156
oct13741704
95800870
103130308
111848935
12106b630
13857a6c
145b6ad6
1541c773
hex2fc3c4

3130308 has 36 divisors (see below), whose sum is σ = 8009820. Its totient is φ = 1030656.

The previous prime is 3130297. The next prime is 3130327. The reversal of 3130308 is 8030313.

It can be written as a sum of positive squares in 2 ways, for example, as 1871424 + 1258884 = 1368^2 + 1122^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2716 + ... + 3692.

It is an arithmetic number, because the mean of its divisors is an integer number (222495).

Almost surely, 23130308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3130308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4004910).

3130308 is an abundant number, since it is smaller than the sum of its proper divisors (4879512).

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

3130308 is a wasteful number, since it uses less digits than its factorization.

3130308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3130308 is about 1769.2676451007. The cubic root of 3130308 is about 146.2836170804.

The spelling of 3130308 in words is "three million, one hundred thirty thousand, three hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 89 178 267 356 534 801 977 1068 1602 1954 2931 3204 3908 5862 8793 11724 17586 35172 86953 173906 260859 347812 521718 782577 1043436 1565154 3130308